Question

[nguyen kim anh]

tong cua hai so la 498.neu gap so thu nhat len 5lan va so thu hai len 35 lan thi duoc hai so moi co tong la 10500.tim so thu hai

Answer 1

[Trần Huy Hoàng]

a+b=498

5a+35b=10500

=> 5a+5b+30b=10500

=> 5(a+b)+30b=10500

=>30b=10500-2490=8010

=>b=8010/30=267