Question

Solve this problem with explanation..​

Answer 1

Answer:

Present age of A be x

Present age of B be y

Difference of their age= y-x

(difference in their age will be always same)

So by condition given in question

(5/7)x - (3/5)y = y-x

Value of x is given 28, put it in the equation

20- (3/5)y =y-20

y=30