Aptitude - Problems on H.C.F and L.C.M - Discussion
Discussion Forum : Problems on H.C.F and L.C.M - General Questions (Q.No. 11)
11.
Find the lowest common multiple of 24, 36 and 40.
Answer: Option
Explanation:
2 | 24 - 36 - 40
--------------------
2 | 12 - 18 - 20
--------------------
2 | 6 - 9 - 10
-------------------
3 | 3 - 9 - 5
-------------------
| 1 - 3 - 5
L.C.M. = 2 x 2 x 2 x 3 x 3 x 5 = 360.
Discussion:
22 comments Page 3 of 3.
Yash B said:
2 years ago
@All.
Get large element:
And then(large element/common number)× second largest element.
24, 36 ,40
Large = 40.
Common number that divide all three =4
(40/4) = 10
Second large = 36 × 10 =360.
Get large element:
And then(large element/common number)× second largest element.
24, 36 ,40
Large = 40.
Common number that divide all three =4
(40/4) = 10
Second large = 36 × 10 =360.
(13)
SREEDHARAN J M said:
1 week ago
@All.
Among 24, 36, 40.
36 is divisible by 9.
So, our answer is also divisible by 9.
In the given options, only 360 is divisible by 9.
So, that's the answer.
Among 24, 36, 40.
36 is divisible by 9.
So, our answer is also divisible by 9.
In the given options, only 360 is divisible by 9.
So, that's the answer.
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