Question

The ages of A and B are in the ratio 5:7. four years from now the ratio of therir ages will be 3:4. The present age of B is​

Answer 1

Answer:

28

Step-by-step explanation:

Let ages of A and B be 5x and 7x

A/c to que

(5x+4)/(7x+4) = 3/4

4*(5x+4) = 3*(7x+4)

20x + 16 = 21x + 12

20x-21x = 12-16

-x = -4

x=4

present age of A = 5*4= 20

present age of B = 7*4 = 28