Question

Anna is x years old and her sister, Jane, is y years younger.

1) How old is Jane?
2) How old was Anna 3 years ago?
3) How old will Jane be in 5 years?
4) What is the sum of their current ages?
I know it's a lot but please help me :)

Answer 1

1) Jane is (x - y) years old

2) Anna was (x - 3) years old 3 years ago

3) Jane will be (x - y + 5) years old in 5 years

4) The sum of their current ages is (2x - y) years