Adam's age is a multiple of 8 this year.
His age 3 years later will be multiple of 5.
- What is Adam's age this year?
- What was Adam's age 4 years ago?
- What is Adam's age 8 years later?
Multiple(s) of 8: 8, 16, 24, 32
Multiple(s) of 8 (+3): 11, 19, 27, 35
Multiple(s) of 5: 5, 10, 15, 20, 25, 30, 35
35 appears in both the multiples of 5 and the multiples of 8 (+3).
35 is Adam's age 3 years later.
(a) Adam's age this year = 32
(b) Adam's age 4 year ago = 32 - 4 = 28
(c) Adam's age 8 years later = 32 + 8 = 40
Answer(s): (a) 32; (b) 28; (c) 40