Question

the ratio between the present age of a and b is 5:7 respectively.if the difference between b's present age and a's age after 6 years is 2,what is the total of a's and b's present ages?

Answer 1

present age a = 5x

present age of b = 7x

Age of a after 6years = 5x + 6

7x - 5x - 6 = 2

2x = 8

x = 4

Total present age of a and b = 5x + 7x  = 5x 4  +  7x4  = 20 + 28 = 48