Q: Two old friends, Jack and Bill, meet after a long time. Jack: Hey, how are you man? Bill: Not bad, got married and I have three kids now Jack: That’s awesome. How old are they?Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date. Jack: Cool … But I still don’t know.Bill : My eldest kid just started taking piano lessons. Jack: Oh now I get it.How old are Bill’s kids ?

• A. 3, 3, 8
• B. 2, 6, 6
• C. 1, 6, 12
• D. 1, 8, 9