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. 3)
3.
Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?
Answer: Option
Explanation:
L.C.M. of 2, 4, 6, 8, 10, 12 is 120.
So, the bells will toll together after every 120 seconds(2 minutes).
| In 30 minutes, they will toll together | 30 | + 1 = 16 times. |
| 2 |
Discussion:
171 comments Page 5 of 18.
Krishna said:
1 decade ago
Thank you Sravan I got it.
Gayatri said:
1 decade ago
Thank u deepak...
Ali said:
1 decade ago
Excellent explanation sravanreddy
Nimmi said:
1 decade ago
But why have counted till 120. ?
Rahul said:
1 decade ago
Thanks Sravanreddypailla. Its truly good.
Vairam said:
1 decade ago
Why 1 is added?
Naveen said:
1 decade ago
Really good explnation.
Lakshmisha said:
1 decade ago
@Sravanreddypailla, excellent dude...!!!
Sangeeta said:
1 decade ago
I didn't understand why did we add 1?
Please explain.
Please explain.
Malatha said:
1 decade ago
I also didn't understand why did we add '1'? please tell me.
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