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

• Placement Papers
• /
• L&T
• /
• Numerical Ability
• /
• Number System

L&T Question Papers: L&T Company Profile

(#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 (8 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (5)   (2) Submit Your Solution Number System

Read Solution (2) :

Roger Anton  (8 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.

Is this solution Helpfull? Yes (16) | No   

jitendara  (8 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

Is this solution Helpfull? Yes | No (13)  

Please Login to Read Solution.