Question

The sum of two positive numbers is 60 and one number is four times the other . Find the smallest number .

Answer 1

12

Explanation:

let the big number be x, and small number be y

x + y = 60. ...(1)

x = 4y. ...(2)

now, put x in eq. 1

4y + y = 60

5y = 60

y = 60/5

y =12

thus, the smallest number is 12