Adam's age is a multiple of 8 this year.
His age 3 years ago is a multiple of 9.
Adam's age is between 40 and 50.
- What is Adam's age this year?
- What is Adam's age 3 years ago?
- What is Adam's age 2 years later?
Multiple of 8: 8, 16, 24, 32, 40, 48
Multiple of 8 (-3): 5, 13, 21, 29, 37, 45
Multiples of 9: 9, 18, 27, 36, 45
45 appears in both the multiples of 8 (-3) and the multiples of 9.
(a) Adam's age this year = 48
(b) Adam's age 3 year ago = 48 - 3 = 45
(c) Adam's age 2 years later = 48 + 2 = 50
Answer(s): (a) 48; (b) 45; (c) 50