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How old are Bob’s kids?

+1 vote
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Two old friends, Jacky and Bob, meet after a long time.
Jacky: Hey, how are you man?
Bob: Not bad, got married and I have three kids now.
Jacky: That’s awesome. How old are they?
Bob: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jacky: Cool… But I still don’t know.
Bob: My eldest kid just started taking piano lessons.
Jacky: Oh now I get it.
How old are Bob’s kids?

posted Jul 4, 2017 by Anand Huded

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1 Answer

0 votes

3,4,6
The eldest son has started piano classes it means he must be minimum age of 6 years.
And, 3*4*6=72
Then 3+4+6=13 it means birth date of Jacky
Factorizing 72 = 2*2*2*3*3=separate three parts
That means eldest son must be 6 years .so cut 2 and 3.
And then left 2,2,3 a son must be smaller than another so one is 4 years and one is 3 years.

answer Jul 5, 2017 by anonymous



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