Question

the difference of two numbers is 20. if one of the number is one-third of the other, find the two numbers.

Answer 1

let 1 no.be x 
then other no.is x/3
then
x+x/3=20
3x+x/3=20
4x/3=20
4x=60
x=60/4
x=15
so 1st no. is 15 and other no. is 5

Answer 2

Hey

Let the two numbers be x and y .

Difference = ( x - y )

Now given :-

( x - y ) = 20 .

And , y = 1 / 3 * x ( given ) .

A / q ,

x - x / 3 = 20

=> 3x - x / 3 = 20

=> 2x / 3 = 20

=> x = 20 * 3 / 2

=> x = 10 * 3

=> x = 30 .

So ,

y = x / 3

= 30 / 3

= 10 .

So , two numbers are :-

30 and 10.

thanks :)