Question

A positive number is 5 times another number if 21 is added to both the number then one of the new number become twice The Other tune number what is are the number

Answer 1

let the another number=x

let the positive number=5x

A.T.Q= x+21=5x+21

=2(x+21)=5x+21

=2x+42=5x+21

=42-21=5x-2x

=21 = 3x

= 21/3=x

=x=7