Question

Six years ago Peter was half Sams age. four years from now sam will be 16 how old is peter​

Answer 1

Peter is 9.

Since Sam will be 16 in 4 years, Sam is currently 12.

Six years ago, Sam was 6 years old.

Half of that is 3, Peter's age 6 years ago.

Since Peter was 3, he is currently 9 years old.