Adam's age is a multiple of 6 this year.
His age 4 years later will be multiple of 5.
- What is Adam's age this year?
- What was Adam's age 3 years ago?
- What is Adam's age 8 years later?
Multiple(s) of 6: 6
Multiple(s) of 6 (+4): 10
Multiple(s) of 5: 5, 10
10 appears in both the multiples of 5 and the multiples of 6 (+4).
10 is Adam's age 4 years later.
(a) Adam's age this year = 6
(b) Adam's age 3 year ago = 6 - 3 = 3
(c) Adam's age 6 years later = 6 + 8 = 14
Answer(s): (a) 6; (b) 3; (c) 14