Question

please answer this question

Answer 1

Let one no. be x
then other no. =5x

When 21 is added to both the numbers
the numbers obtained are :
x+21 and 5x+21

According to question :
5x+21=2(x+21)
5x+21=2x+42
5x-2x=42-21
3x=21
x=7

The two numbers are 7 and 35

Answer 2

let the numer be x then the first number 5x then second number is x
then we add 21 both sides
5x+21=x+21
then we mulity 2 to secondwith number
5x+21=2(x+21)
5x+21=2x+42
5x-2x=42-21
3x=215*x=21/3
then x = 7
then two are is 5*7=35 and x=7