human
Bush and Matt are brothers. Bush is younger than Matt by 3 years. This year Bush will be 12 years old. What will be Matt's age 10 years from now?
assistant
How old is Matt? ** Bush is younger than Matt by 3 years, so if Bush is 12 years old then Matt is 12+3 = <<12+3=15>>15 years old
How old will Matt be in 10 years? ** In 10 years' time, Matt will be 10+15 = <<10+15=25>>25 years old
#### 25