Question

1-0 before 7 years the ratio of ages of a and b was 3: 4. After 9 years if the ratio of their ages will be 7: 8 the present age of b will be

Answer 1

Answer:

Step-by-step explanation:

Let ages of a & b before 7 years were 3x and 4x

Present age of a & b will be 3x+7 and 4x+7

After 9 years

3x+7+9/4x+7+9 = 7/8

x = 4

Present age of b = 4x4+7 = 25 years