Adam's age is a multiple of 5 this year.
His age 5 years later will be multiple of 3.
- What is Adam's age this year?
- What was Adam's age 8 years ago?
- What is Adam's age 2 years later?
Multiple(s) of 5: 5, 10
Multiple(s) of 5 (+5): 10, 15
Multiple(s) of 3: 3, 6, 9, 12, 15
15 appears in both the multiples of 3 and the multiples of 5 (+5).
15 is Adam's age 5 years later.
(a) Adam's age this year = 10
(b) Adam's age 8 year ago = 10 - 8 = 2
(c) Adam's age 5 years later = 10 + 2 = 12
Answer(s): (a) 10; (b) 2; (c) 12