Question

7 years ago, the ages (in years) of a and b were in the ratio 4:5 and 7 years hence they will be in the ratio 5:6. The present age of b is

Answer 1

Answer:

42

Step-by-step explanation:

7 year ago age was

a = 4 * 7 = 28

b = 5 * 7 = 35

Present age is

a = 28 + 7 = 35

b = 35 + 7 = 42

35:42 = 5:6