Latest L&T Aptitude Question SOLUTION: If each of the three non-zero numbers a , b , and c is divisible by 3, then abc must be divisible by which one of the following the numbers? (1) 8 (2) 81 (3) 27 (4) 122

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(#M40156496) L&T Numerical Ability question Keep an EYE

If each of the three non-zero numbers a , b , and c is divisible by 3, then abc must be divisible by which one of the following the numbers?
(1) 8
(2) 81
(3) 27
(4) 122
(5) None of these

Asked In L&T ABHINAV PUSHPAM (7 years ago)

Unsolved Read Solution (2)

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Roger Anton  (7 years ago)

Since, each one of the three numbers a, b, and c is divisible by 3, the numbers can be represented as 3p,3q and 3r, respectively, where p,q and r are integers.

The product of the three numbers is 3p×3q×3r=27(pqr).
Since p, q and r are integers, pqr is an integer and therefore abc is divisible by 27.

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jitendara  (7 years ago)

5
suppose we have thre no 9,12,15
which is divisible by3
then abc=720
check with the option
as in question it is clearly said that must be divisible

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