Because , we are counting on years before Christ was born. 1991 BC 14 years old 1997 BC 7 years old

If the age is based on B C it could be

Monique is 24 years old. She is twice the age that Valerie had when Monique was the same age that Valerie is now. How old is Valerie?

There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 1,600 after 3 years at the same rate?