Level 1
A pencil costs $x. A novel costs $15 more than the pen. A file costs $5 less than the novel. Find the total cost of the 3 items.
2 m
Level 1
12 years ago, Donald was 8c years old.
  1. How old was Donald 5c years ago?
  2. How old will Donald be 2c years later?
2 m
Level 1
Linda is k years old last year. Her brother is 3 years younger than her. What would their total age be in 7 years? time?
2 m
Level 1
Ken is 11 years old. His father is x years older than him. What will be their total age in 4x years' time?
2 m
Level 1
Jim is 29 years old. His mother is b years older than him and 3b years older than Keith. Find Keith's age in terms of b.
2 m