Adam's age is a multiple of 2 this year.
His age 4 years later will be multiple of 7.
- What is Adam's age this year?
- What was Adam's age 5 years ago?
- What is Adam's age 4 years later?
Multiple(s) of 2: 2, 4, 6, 8, 10
Multiple(s) of 2 (+4): 6, 8, 10, 12, 14
Multiple(s) of 7: 7, 14
14 appears in both the multiples of 7 and the multiples of 2 (+4).
14 is Adam's age 4 years later.
(a) Adam's age this year = 10
(b) Adam's age 5 year ago = 10 - 5 = 5
(c) Adam's age 2 years later = 10 + 4 = 14
Answer(s): (a) 10; (b) 5; (c) 14