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2 tháng 5 2021

Số học sinh lớp 6A là:

\(120.\dfrac{1}{3}=40\left(hs\right)\)

Số học sinh lớp 6B là:

\(120.\dfrac{3}{8}=45\left(hs\right)\)

Số học sinh lớp 6C là:

\(120-40-45=35\left(hs\right)\)

2 tháng 5 2021

6A có 40 hs

6B có 45 hs

6C có 35 hs

14 tháng 11 2016

a là 22 nhé

14 tháng 11 2016

Bạn đăng lên Toán đi

Xếp thành hàng 12, 15, 18 hàng đều thừa 5 hs
=> x‐5 thuộc BC ﴾12; 15; 18﴿ và 200<x‐5<400
BCNN ﴾12; 15; 18﴿
12= 222.3
15= 3.5
18= 2.322
BCNN (12; 15; 18) = 222.322.5 = 4.9.5 = 180
BC (12; 15; 18)= B(180) = {0;180;360;540;......}
mà 200<x‐5<400
nên x‐5=360
x= 360+5= 365
vậy số học sinh khối 6 đó là 365 hs

26 tháng 10 2021

TL

Ta có :

BCNN (12,15,18)=180

Vậy số học sinh khi bớt đi 1 là một bội của 180, do đó bằng 180 k với k là một số tự nhiên.

Theo đề bài ta có

200<180 k<400

<=>1<k≤2

Vậy k=2 và số học sinh của trường khi bớt đi 1 là 180.2=360


Vậy số học sinh của trường đó là :

        360+1=361 (học sinh)

         Đs : 361 học sinh

HT

13 tháng 6 2019

#)Giải :

Bài 1 :

a) Để 5* là số nguyên tố => 5* chỉ có 2 ước là 1 và 5*

=> * = 3 hoặc 9

b) Nếu vắng 1 học sinh thì có mặt xếp 2, 3, 6, 7 hàng đều vừa đủ 

=> Số học sinh khi văng 1 chia hết cho 2, 3, 6, 7 

Để số học sinh chia hết cho 2 => chữ số cuối cùng phải là 2,4,6,8

Mà số học sinh của lớp trong khoảng 35 - 45 em 

=> Ta chọn được các số 36; 38; 40; 42 

Để số học sinh của lớp chia hết cho 3 => tổng các chữ số phải chia hết cho 3 

=> Ta chọn được các số 36; 42

Để số học sinh của lớp chia hết cho 6 => phải chia hết cho cả 2 và 3

Vậy hai số đều thỏa mãn

Vì trong 2 số chỉ có 42 chia hết cho 7 => Số học sinh của lớp đó khi vắng 1 là 42 học sinh

=> Số học sinh lớp đó là : 42 + 1 = 43 ( học sinh )

                                                  Đ/số : 43 học sinh.

14 tháng 11 2016

Câu này bạn phải đăng lên chuyên mục Toán chứ???

30 tháng 1 2019

dịch sang tiếng anh nha

30 tháng 1 2019

You need: 1 burlap bag, 1 chalk, 10 players or more

Rule :

1) Divide the number of people making 2 or more teams

2) each team placed a veral row. The leader of the line will enter the first tatr bag

3) Upon hearing the command, the surrender of each team will jump to the destination and return to the previous position

4) Play until the last person is gone, the team that wins first wins

          hok tốt

Đề cho hs lớp 6 luyện thi  ( HS LÀM VÀ ĐỂ ĐÁP ÁN Ở COMMEMT ĐỂ GV CHẤM )A.   PRONUNCIATIONI.   Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions 1A. happyB. appleC. actD. aunt2A. mindB. bikeC. fitD.tidy3A. schoolB. chairC. churchD. chat4A. healthB. teamC. teaD. sea5A. citadelB. dayC. vacationD. stay6A. nearB. ideaC. theaterD. beach7A. watchB. wantC....
Đọc tiếp

Đề cho hs lớp 6 luyện thi  ( HS LÀM VÀ ĐỂ ĐÁP ÁN Ở COMMEMT ĐỂ GV CHẤM )

A.   PRONUNCIATION

I.   Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions

 

1

A. happy

B. apple

C. act

D. aunt

2

A. mind

B. bike

C. fit

D.tidy

3

A. school

B. chair

C. church

D. chat

4

A. health

B. team

C. tea

D. sea

5

A. citadel

B. day

C. vacation

D. stay

6

A. near

B. idea

C. theater

D. beach

7

A. watch

B. want

C. camera

D. what

8

A. theater

B. this

C. there

D. that

9

A. cheap

B. great

C. peace

D. meal

10

A. chess

B. tennis

C. complete

D. contest

B.    VOCABULAR

 

I.   Mark the letter A, B, C, or D on your answer sheet to indicate the odd word in each line

 

1.

A. book

B. show

C. comedy

D. cartoon

2.

A. weatherman

B. actor

C. viewer

D. MC

3.

A. television

B. newspaper

C. radio

D. telephone

4.

A. viewer

B. audience

C. onlooker

D. character

5.

A. boring

B. educational

C. interesting

D. funny

 

II.        Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

1.    I like........... films “The Lion King”.

A.    game show              B. animated                 C. comedy                 D. talent show

2.    She................................... aerobics now.

A. is doing                    B. doing                      C. do                           D. does

3.    I like watching sport,.............. my little brother like watching cartoons.

A. so                           B. and                         C. but                           D. or

4.    My father first................................. Da Lat in 2010.

A.    visited                  B. visit                            C. go                           D. been

5.    Comedies are................ people laugh a lot when they watch them.

A. famous                 B. cute                          C. funny                       D. boring 6.My dad…… a lot of tennis some years ago.

A. played                  B. plays                         C. was playing               D. is playing

7.    I often watch many educational programmes..................... my brother.

A.    with                    B. to                              C. for.                             D. by

8.    That film is very ……we don’t want to watch it.

A.    funny                  B.interesting                   C. love                         D. boring

9.    ................. do you go to school? Every afternoon.

A.    How much          B. How often                C. How many              D. How

10.    Lan..................... aerobic everyday.

A.    does                    B. plays                          C. goes                        D. dances

11.    His brother......... working on the computer so much because it makes him tired.

A.    dislikes             B. enjoys                      C. loves                         D. likes

12.    He wants to get high marks in the final exam,.................................. he is trying his best.

A.    but                      B. so                            C. and                            D. because

13.    Ann didn’t come to my birthday party............................... it rained heavily.

A.    so                       B. and                         C. because                       D. although

14.  she was lazy, she passed the exam last week.

A.    Because             B. Although                C. So                                D. When

15.     Watching TV much is not good for our eyes ................. it can make us short- sighted.

A. but                   B. because                   C. so                                 D. and

16.    How many TV......................... are there in Viet Nam?

A.    comedians           B. channels.             C. remote control              D. telephone

17.  can kids learn from TV?

A.    Where               B. What                      C. When                            D. Who

18.    Television keeps children from.............................. part in outdoor activities.

A.    take                  B. took                         C. taking                           D. taken

19.    Why don’t you go out and see movies with her?.................................. I’m so busy.

A.    so                    B. because                     C. then                              D. when

20.    Do you know.......................... language is spoken in Kenya?

A.    which               B. who                          C. what                            D. how

21  . - ............................. can I buy some milk? - At the supermarket.

A. Which             B. Where                      C. What                           D. How

22  . - ..........................  hat is this? It’s my brother’s?

A. Which             B. Who                         C. What                           D. Whose

23.    Would you like tea............................. hot chocolate for your breakfast?

A.  and                 B. but                           C. or                                 D. so

24.    Our car is old,.............................. it drives beautifully.

A.  and                  B. but                          C. or                                 D. so

25.    It was very warm,.................................. we all went swimming.

A.  and                  B. but                          C. or                                  D. so

26.    My brother can’t swim                              he’s afraid of water.

A.  because            B. and                          C. but                                D. so

27.    My sister likes going to the cinema                                   I like watching TV at home.

A.  and                      B. but                                   C. because                   D. or

28................. pen is this? Can I borrow it?

A. Whose           B. Whom                                   C. Who                        D. Which 29.................... are you going to invite to your party next week?

A. What                    B. Who                                C. Whose                    D. Where 30............ did you spend in Hanoi? – One week.

A. How many           B. How much                       C. How long              D. How often

31.    I want to watch the cartoon                      I turn on the TV.

A.  but                       B. so                                     C. although                D. because

32.    Jerry is a(n) clever little mouse.

A.  small                   B. special                               C. intelligent              D. special

33.    ‘Let’s learn’ teaches children to study Maths. It’s an                               program.

A.  live                     B. popular                             C. entertaining            D. educational

34.                      Mai and Lan are interested in listening to music.

A. Because              B. Both                                  C. Neither                   D. So 35.The program can both    and entertain young audiences.

A. educated            B. education                          C. educational             D. educate

36.  Where are the children? They                               in the yard.

A.  play                   B. are playing                         C. is playing                D. plays

37.  They     the bus yesterday.

A.  don’t catch          B. weren’t catch                  C. didn’t catch              D. not catch

38.  My sister  home last night.

A.  comes                    B. come                       C. came                       D. was come

39.  We David in town a few days ago.

A.  did see                   B. was saw                  C. did saw                   D. saw

40.  I  to the cinema three times last week.

A.was go                     B. went                       C. did go                     D. go 41 The police                              on my way home last night.

A. stoped                   B. stopped                   C. stops                       D. stopping

42.  The film wasn’t very good. I                              it very much.

A.  enjoyed                  B. wasn’t enjoy           C. didn’t enjoyed         D. didn’t enjoy

43.  The bed was very uncomfortable. I                               sleep very well.

A.  didn’t                    B. did                           C. wasn’t                    D. not

44.  Peter................................. three goals for our team and made it a hat trick.

A.  scores                     B. scored                      C. plays                     D. played

45.   Our school football team …………... the match with Nguyen Du school last Saturday.

A. wins                        B. won                         C. scores                                D. scored

46.  I’d like to watch motor racing because it is very ……….……...

A.  frightening            B. exciting                   C. excited                               D. boring

47.  My sister often................................ badminton in her free time.

A.  play                        B. plays                       C. playing                               D. to play

48.                                                          do you do judo? - Twice a week.

A.  Why                     B. How often                C. Where                                D. When

49.  He likes playing basketball.................................. it is so funny.

A.  so                         B. because                      C. but                                     D. although

50.  He........................... out with his friends last week.

A.  go                         B. goes                           C. went                                   D. going

51 My father likes watching TV ..................... he spends most of his time in the evening watching his favourite programmes.

A. so                         B. because                       C. and                                    D. but

52.  Critic say Midnight Run is a must – see......................... it is funny and exciting.

A.  although.             B. because.                     C. however.                            D. therefore

53.  That vampire film was extremely........................ I had my eyes closed half on the time!

A.  hilarious.              B. moving.                     C. gripping.                             D. Scary

 

C. Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.

1.  What do you do in your free time?

A.  play                        B.spare                                   C. hobby                       D. funny

2.  We are studying English at the moment.

A.  learning                  B. cooking                             C. watching                    D. listening

3.  Playing football is very exciting!

A.  soccer                    B. basketball                           C. volleyball                  D. table tennis

4.  The weather in summer is so beautiful that people want to go camping.

A.  rainy                      B. cold                                    C. snowy                       D. nice

5.  John enjoys animated films like Tom and Jerry.

 

A.  dislikes                  B. hates                                   C. loves                           D. does not like

 

D. Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.

1.    Most children love outdoor activities when the weather is good.

A.    school                         B. indoor                    C. playground                   D. post office

2.    Lan and Nam live in a big house in the countryside.

A. large                           B. huge                        C. small                             D. massive

3.    I remembered locking the door before leaving the house.

A.    missed                        B. forgot                     C. hurried                          D. needed

4.    It is such an interesting lesson that students carefully listen to.

A.    wonderful                  B. amazing                   C. boring                           D. scary

5. His father taught him to play football at a very young age.

A.    strong                         B. old                           C. weak                             D. healthy

 

B.    Find one mistake in each sentence and correct it

1. Last summer my parents buyed me a lot of different gift

              A                              B               C                     D

2. There was many people standing on the street

               A                       B           C      D

3.   I ate noodles for dinner but I wasn’t eat anything for lunch

A                B                       C               D

4.   Today we are going to talk for Pele. Do you know him?

        A                     B                C                           D

5.   Sport and games are very important in our lives

        A                 B   C             D

Mark the letter A, B, c or D to indicate the most suitable response to complete each of the following exchanges.

 

1. Hung is putting his feet on the bench.

      You say: “_____________________________________________”.

A. Put your feet on the bench.

B.  Don’t put your feet on the bench.

C.  Didn’t put your feet on the bench.

D. Not ut your feet on the bench.

 

2.You don’t want your friend to tell anyone about this.

      You say: “Please _________________________________________”.

A. tell anyone about this

B.  didn’t tell anyone about this

C.  don’t tell anyone about this

D. doesn’t tell anyone about this

 

3. Duy doesn’t say “Thank you” to people who helped him.

       You tell him: “Duy, _______________________________________.”

A.    say “Thank you” to people who helped you

B.     say “Thank you” to people who helped him

C.     say “Thank you” to people who help you

D.    don’t say “Thank you” to people who helped you

4.      David: Yes, I play football every Sunday. We won the last Sunday’s game 3 – 1.

       Giang: ________________________

A.   Congratulations!

B.   Thank you.

C.   You’re nice to say so.

D.   That’s awful.

III.      READING

REBECCA STEVENS

Rebecca Stevens was the first woman to climb Mount Everest. Before she went up the highest mountain in the world, she was a journalist and lived in south London.

In 1993, Rebecca left her job and her family and travelled to Asia with some other climbers. She found that life on Everest is very difficult. “You must carry everything on your back” she explained, “so you can only take things that you will need. You can’t wash on the mountain, and in the end I didn’t even take a toothbrush. I am usually a clean person but there is no water, only snow. Water is very heavy so you only take enough to drink!”

Rebecca became famous when she reached the top of Mount Everest on May 17, 1993. After that, she wrote a book about the trip, and people often asked herto talk about it. She got a new job too, on a science programme on television.

1. Where was Rebecca Stevens from?

A. England             B. Asia           C. Everes                 D. The South 2.Before she climbed Everest, Rebecca Stevens was  

A. climber                  B. journalist                C. traveller                 D. scientist 3.Why did Rebecca Stevens become famous?

A.   She left her job and her family and travelled to Asia.

B.   She found that life on Everest is very difficult.

C.She got a new job on television.

D.She was the first woman to climb Mount Everest.

4.   Life on Everest is very difficult because                                                        .

A.    it is very high                                                 B. you can’t take things with you

C. there is no water there.                                       D. there are no toothbrushes

5.  After 1993, Rebecca had a __                                      

A.  new book                      B. new job                        C. programme                        D. television

 

Read the text and choose the best answer A, B, or C.

                                                 LEICESTER SQUARE, LONDON

Leicester Square is the cinema centre of London.

The Odeon, a famous cinema, is on the east side of the Square. It can hold 1,683 people.

The Empire, on the north side of the Square, is also a big cinema with 1,330 seats.

The Prince Charles sells tickets much cheaper than other cinemas. This cinema often shows films a few weeks later than other cinemas. If you want to save some money, this is the place for you.

Leicester Square is also the place where people wait (often out in the cold) with the hope to see film stars like Tom Cruise, Julia Roberts or Brad Pitt. They might step out of their limousines to attend the first night of their new movie. Watch out for the screaming fans!

1. Leicester Square is famous for its _______.

A. shopping area                          B. cinemas                                  C. museums

2. The Prince Charles shows films ________.

A. earlier than other cinemas

B. at the same time as other cinemas

C. later than other cinemas

3. The stars come to Leicester Square to ________.

A. eat in restaurants

B. talk to their fans

C. attend the opening night of their films

 

WRITING

Combine the following sentences using an appropriate

1.   Ocean Life is on at 7.30. Laughing out Loud comes next at 8.00. (and)

A.    Ocean Life was on at 7.30 and Laughing out Loud comes next at 8.00.

B.     Ocean Life is on at 7.30, and Laughing out Loud come next at 8.00.

C.     Ocean Life is on at 7.30, and Laughing out Loud comes next at 8.00.

D.    Ocean Life is on at 7.30, and Laughing out Loud came next at 8.00.

2.   I like The Seven Kitties very much. I watch it every day. (so)

A.    So I like The Seven Kitties very much, I watch it every day.

B.     I like The Seven Kitties very much, I watch it so every day.

C.     I like The Seven Kitties very much, I watch it every day so.

D.    I like The Seven Kitties very much, so I watch it every day.

3.   BBC One is a British channel. VTV6 is a Vietnamese channel. (but)

A.    BBC One is a British channel, but VTV6 is a Vietnamese channel.

B.     But BBC One is a British channel, VTV6 is a Vietnamese channel.

C.     BBC One is a British channel, VTV6 is a Vietnamese channel but.

D.    BBC One is a British channel, VTV6 but is a Vietnamese channel. 

4.   Along the Coast is a famous TV series. I don't like it. (but)

A.    Along the Coast is a famous TV series, but I  like it.

B.     Along the Coast is a famous TV series,but  I don't like it.

C.     Along the Coast is a famous TV series, but I didn't like it.

D.    Along the Coast isn’t a famous TV series, but I like it.

5.   I have a lot of homework tonight. I can't watch Eight Feet Below. (so)

A.    I have a lot of homework tonight, so I can watch Eight Feet Below

B.     I had a lot of homework tonight, so I can't watch Eight Feet Below

C.     I have a lot of homework tonight, so I couldn’t watch Eight Feet Below

D.    I have a lot of homework tonight, so I can't watch Eight Feet Below

 

Mark the letter A, B, C or D on your answer sheet to indicate the correct question which is made from the given words

1.      Which/ sports/you /like?

A.    Which sports do you like?

B.     Which sports does you like?

C.     Which sports are you like?

D.    Which sports you like?

2.      What time / you/ have /English classes?

A.    What time did you have English classes?

B.     What time do you have English classes?

C.     What time does you have English classes?

D.    What time are you have English classes?

3.      Where / Ha / Phong/?

A.    Where are Ha and Phong?

B.     Where is Ha and Phong?

C.     Where Ha and Phong are?

D.    Where Ha are and Phong?

4.      What / Minh ang Quan /think about / local people/?/ 

A.    What do Minh ang Quan think about the local people?

B.     What are Minh ang Quan think about the local people?

C.     What do Minh ang Quan thinking about the local people?

D.    What do Minh ang Quan though about the local people?

5.      What place / Duong and Jack /visit/ yesterday/?/

A.    What place did Duong and Jack visit yesterday?

B.     What place did Duong and Jack visited yesterday?

C.     What place does Duong and Jack visit yesterday?

D.    What place did Duong and Jack visiting yesterday?

6.      What /cosy /house/!/

A.    What cosy house!

B.     What a cosy house!

C.     What an cosy house!

D.    What a cosy house.

7.      What/ news/ good /!/

A.    What the news is good!

B.     What news good!

C.     What a good news!

D.    What good news!

8.      people/ so/ friendly/!/

A.    The people is so friendly!

B.   The people are so friendly!

C.     People are so friendly!

D.    The people so are friendly!

 

                                                    --- The end---

2
10 tháng 3 2022

chia nhỏ ra

30 tháng 11 2017

2.

Theo đề bài ta có

480 \(⋮\) a

600 \(⋮\) a

a lớn nhất

\(\Rightarrow\) a \(\in\) ƯCLN ( 480 ; 600 )

480 = 25 . 3 .5

600 = 23 . 3 . 52

a \(\in\){ 480 ; 600 } = 23 . 3 . 5 = 120

30 tháng 11 2017

6.

Gọi số người tham gia buổi đồng diễn là a ( a \(\in\) N* )

Theo đề bài ta có

350 < a < 400

a \(⋮\) 5

a\(⋮\) 6

a\(⋮\) 8

\(\Rightarrow\) a \(\in\) BC ( 5 ; 6 ; 8 ) , 350 < a < 400

5 = 5

6 = 2 . 3

8 = 23

BCNN ( 5 ; 6 ; 8 ) = 5 . 23 . 3 = 120

a \(\in\) BC ( 5; 6 ; 8 ) = B ( 120 ) = { 0 ; 120 ; 240 ; 360 ; 480 ; 600 ...}

mà 350 < a < 400

\(\Rightarrow\) a \(\in\) { 360 }

Vậy số người tham gia buổi đồng diễn là 360 người

22 tháng 7 2019

học kì...?

S
22 tháng 7 2019

đề luyện thi trần đại nghĩa ko ah,nếu đc thì đây nhưng phải đăng kí ó : http://luyenthitrandainghia.com/ (nhớ T.i.K nhắ)