Adam's age is a multiple of 6 this year.
His age 4 years ago was a multiple of 2.
- What is Adam's age this year?
- What was Adam's age 5 years ago?
- What is Adam's age 6 years later?
Multiple of 6: 6
Multiple of 6 (-4): 2
Multiple of 2: 2
2 appears in both the multiples of 6 (-4) and the multiples of 2.
Adam's age 4 years ago = 2
(a) Adam's age this year = 6
(b) Adam's age 5 year ago = 6 - 5 = 1
(c) Adam's age 6 years later = 6 + 6 = 12
Answer(s): (a) 6; (b) 1; (c) 12