Adam's age is a multiple of 5 this year.
His age 3 years ago was a multiple of 2.
- What is Adam's age this year?
- What was Adam's age 7 years ago?
- What is Adam's age 8 years later?
Multiple of 5: 5
Multiple of 5 (-3): 2
Multiple of 2: 2
2 appears in both the multiples of 5 (-3) and the multiples of 2.
Adam's age 3 years ago = 2
(a) Adam's age this year = 5
(b) Adam's age 7 year ago = 5 - 7 = -2
(c) Adam's age 5 years later = 5 + 8 = 13
Answer(s): (a) 5; (b) -2; (c) 13