Latest CTS Aptitude Question SOLUTION: 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?

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(#M40153001) CTS Logical Reasoning question logical Keep an EYE

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?

Asked In CTS rashmi kumari (8 years ago)

Unsolved Read Solution (5)

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Read Solution (5) :

Aditya Kumar  (8 years ago)

Let’s break it down. The product of their ages is 72. So what are the possible choices?

2, 2, 18 – sum(2, 2, 18) = 22
2, 4, 9 – sum(2, 4, 9) = 15
2, 6, 6 – sum(2, 6, 6) = 14
2, 3, 12 – sum(2, 3, 12) = 17
3, 4, 6 – sum(3, 4, 6) = 13
3, 3, 8 – sum(3, 3, 8 ) = 14
1, 8, 9 – sum(1,8,9) = 18
1, 3, 24 – sum(1, 3, 24) = 28
1, 4, 18 – sum(1, 4, 18) = 23
1, 2, 36 – sum(1, 2, 36) = 39
1, 6, 12 – sum(1, 6, 12) = 19

The sum of their ages is the same as your birth date. That could be anything from 1 to 31 but the fact that Jack was unable to find out the ages, it means there are two or more combinations with the same sum. From the choices above, only two of them are possible now.

2, 6, 6 – sum(2, 6, 6) = 14
3, 3, 8 – sum(3, 3, 8 ) = 14

Since the eldest kid is taking piano lessons, we can eliminate combination 1 since there are two eldest ones. The answer is 3, 3 and 8.

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swati nayak  (7 years ago)

go for simple factorization of 72 which will be 2 X 2 X 2 X 3 X 3=8 X 3 X 3.(as product should be 72)
Hence the eldest one is 8 n rest are 3.

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Streeteja  (8 years ago)

6,4,3 can be out of trial

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pratik  (8 years ago)

ans id uncertain

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Aashish  (7 years ago)

its 9 8 1 as the piano learning age is >5 and the sum of dob must be in 19's so for 1980 this is perfect

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