Question

the respective ratio of the present ages of a and b is for is 4:5 years was the respective ratio of their ages will be 6:7 what is the difference between their ages

Answer 1

Answer:

Let a's present age = 4x years

b"s present age = 5x years

4x+65x+6=67

30x + 36 = 28x + 42

2x = 42 - 36

2x=6

x=6/2

x = 3 = difference of their age