Question

one number is 2/5 times as another number. the sum of two numbers is 28.find the number

Answer 1

let one no. be x then
other no. is 2/5x
A/Q
x+2/5x=28
(5x+2x)/5=28
7x=28×5
7x=140
x=140/7
x=20
Hence,one no. is 20 and other 2/5*20is=8

Answer 2

I think it can help you