Question

Three fourth of a number is equal to 60% of another number.And the difference between the two numbers is 20.What is the sum of the two numbers

Answer 1

3/4 of a = 60/100 of b

3/4 x a = 3/5 x b

a/4 = b/5

5a = 4b

Given a - b = 20

a = 20 + b

substituting

5(20 + b) = 4b

or b = 100

5a = 4b

5a = 4(100)

a =80

Given a + b = 80 + 100 = 180