Adam's age is a multiple of 5 this year.
His age 5 years later will be multiple of 6.
- What is Adam's age this year?
- What was Adam's age 5 years ago?
- What is Adam's age 2 years later?
Multiple(s) of 5: 5, 10, 15, 20, 25
Multiple(s) of 5 (+5): 10, 15, 20, 25, 30
Multiple(s) of 6: 6, 12, 18, 24, 30
30 appears in both the multiples of 6 and the multiples of 5 (+5).
30 is Adam's age 5 years later.
(a) Adam's age this year = 25
(b) Adam's age 5 year ago = 25 - 5 = 20
(c) Adam's age 5 years later = 25 + 2 = 27
Answer(s): (a) 25; (b) 20; (c) 27