Adam's age is a multiple of 5 this year.
His age 5 years later will be multiple of 10.
- What is Adam's age this year?
- What was Adam's age 4 years ago?
- What is Adam's age 2 years later?
Multiple(s) of 5: 5
Multiple(s) of 5 (+5): 10
Multiple(s) of 10: 10
10 appears in both the multiples of 10 and the multiples of 5 (+5).
10 is Adam's age 5 years later.
(a) Adam's age this year = 5
(b) Adam's age 4 year ago = 5 - 4 = 1
(c) Adam's age 5 years later = 5 + 2 = 7
Answer(s): (a) 5; (b) 1; (c) 7