Adam's age is a multiple of 11 this year.
His age next year will be multiple of 7.
Adam's age is between 50 and 60.
- What is Adam's age this year?
- What was Adam's age 2 years ago?
- What is Adam's age 9 years later?
Multiple of 11: 11, 22, 33, 44, 55
Multiple of 11 (+1): 12, 23, 34, 45, 56
Multiple of 7: 7, 14, 21, 28, 35, 42, 49, 56
56 appears in both the multiples of 11 (+1) and the multiples of 7.
(a) Adam's age this year = 55
(b) Adam's age 2 years ago = 55 - 2 = 53
(c) Adam's age 9 years later = 55 + 9 = 64
Answer(s): (a) 55; (b) 53; (c) 64