**The first grad says to the second**: “how have you been?”

**Second**: “great! i got married and i have three daughters now”

**First**: “really? how old are they?”

**Second**: “well, the product of their ages is 72, and the sum of their ages is the same as the number on that building over there..”

**First**: “right, ok.. oh wait.. hmm, i still don’t know”

**Second**: “oh sorry, the oldest one just started to play the piano”

**First**: “wonderful! my oldest is the same age!”

How old are the daughters ?

See Solution : Daughter's agesWe know that there are 3 daughters whose ages multiply to 72. Let’s look at the possibilities…

Ages:Sum of ages: 1 1 72 74 1 2 36 39 1 3 24 28 1 4 18 23 1 6 12 19 1 8 9 18 2 2 18 22 2 3 12 17 2 4 9 15 2 6 6 14 3 3 8 14 3 4 6 13