Question

if one natural Number is 4 times another and their sum is 65, find the number

Answer 1

Let the number be x

another number=4x

By the condition given in the question

x+4x=65

5x=65

x=13

4x=52

so the numbers are 13 and 52

Answer 2

let the smaller natural number = x

the greater one = 4x

sum = 4x + x = 65
5x = 65
x = 65/5 =13

The greater number = 4×13 = 52

The number is 52