Question

a grandfather is 9 times as old as his granddaughter. In 8 years, the grandfather will be 5 times as old as his granddaughter. How old is each of them now?

Answer 1

Grandpa 72 girl 8 years old

Answer 2

The grandfather is 72 years old and the granddaughter is 8 years old now.

Explanation:

To calculate this, first calculate the grandfather's age in 8 years:

72 + 8 = 80.

Then, use the given information to calculate the granddaughter's age in 8 years: 8 + 8 = 16.

Finally, use the given information to calculate the grandfather's age now: 5 x 16 = 80, so 80/5 = 16, and 16 x 9 = 72.