Adam's age is a multiple of 6 this year.
His age 5 years later will be multiple of 7.
- What is Adam's age this year?
- What was Adam's age 6 years ago?
- What is Adam's age 8 years later?
Multiple(s) of 6: 6, 12, 18, 24, 30
Multiple(s) of 6 (+5): 11, 17, 23, 29, 35
Multiple(s) of 7: 7, 14, 21, 28, 35
35 appears in both the multiples of 7 and the multiples of 6 (+5).
35 is Adam's age 5 years later.
(a) Adam's age this year = 30
(b) Adam's age 6 year ago = 30 - 6 = 24
(c) Adam's age 6 years later = 30 + 8 = 38
Answer(s): (a) 30; (b) 24; (c) 38