Question

The sum of two numbers one of which is one third of the other is 80 find the smaller number.

Answer 1

20

Explanation:

let 'x' = larger number

let 'x/3' = smaller number

x + x/3 = 80

4/3x = 80

multiply each side by 3/4 to get:

x = 240/4

x = 60

x/3 = 20