Question
19 years ago, Carl was 6a years old.
  1. How old was Carl 4a years ago?
  2. How old will Carl be 2a years later?
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

19 years ago, Carl was 6a years old.
  1. How old was Carl 4a years ago?
  2. How old will Carl be 2a years later?