Một ảo thuật gia đã đặt một bông hoa vào một chiếc bình. Một giây sau số hoa trong bình là 2. Cứ sau một giây số hoa trong bình lại tăng gấp đôi. Trong 23 giây, số bông hoa là 16 777 216. Hỏi sau bao nhiêu giây để có 8 388 608 bông hoa?
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Đổi 15p45s=15,75p
Trugn bình 1 bông hoa làm trong
15,75 : 5=3,15(phút)
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Trung bình làm một bông hoa hết số thời gian là:
15 phút 45 giây : 5 = 3 phút 9 giây
Đáp số: 3 phút 9 giây
Đổi 15 phút 45 giây = 945 giây . Vậy trung bình bạn đó làm 1 bông hoa hết số thời gian là : 945 : 5 = 189 (giây) =3 phút 9 giây Đáp số : 3 phút 9 giây
Đổi 15 phút 45 giây = 945 giây
Trung bình bn đó làm 1 bông trong số giây là:
945:5=189(giây)
Đáp số: 189 giây
Cứ sau 1 phút số virut sẽ đầy bình tức sau 60 giây thì số virut sẽ đầy binh
Vậy sau 59 giây số vi rút bằng 1/2 chiếc bình
AN :10 bong Binh:40 bong Hoa:25 bong Tu:20 bong Phuong:5 bong Trong vuon con :125-(10+40+25+20+5)=25 bong
Trả lời:
Ta có 16777216/8388608 =2
=> sau 22 giây sẽ có 8388608 bông hoa
23 giây bạn nhé
mà bạn trả lời kỹ hơn đc ko