Question

The sum of two one numbers, one of which is one thirds of the other, is 60. Find the smaller number

Answer 1

15 smaller The other 45

Explanation:

X= big

1/3(x) = small

x+1/3(x) = 60

Multiply both sides by 3 to eliminate the fraction

3x+x = 180

4x=180

x= 45 (big=45)

60-45= 15 (small = 15)

45/3=15

Answer 2

x = 15

(y = 45)

Explanation:

x + y = 60

x = y/3

y/3 + y = 60 /*3

y + 3y = 180

4y = 180 /÷4

y = 45

x = y/3 = 45/3 = 15