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:
170 comments Page 14 of 17.
Nimmi said:
1 decade ago
But why have counted till 120. ?
Suparna said:
1 decade ago
Why 30 divided by 2 and 1 added?
Shrinivasmutagar said:
1 decade ago
Why that 120 sec have been took?
Punk said:
2 decades ago
Why 1 is added? please explain.
Ankit said:
7 years ago
Please explain why 1 is added ?
Saanvi said:
7 years ago
Well said, Thanks @Sravanreddy.
Sirichandana said:
5 years ago
Very well said, thanks @Sravan.
Rohini said:
4 years ago
Thanks everyone for explaining.
(5)
Name said:
7 years ago
How 120 come?
Please explain.
Please explain.
Raksha said:
6 years ago
Why 1 is added please explain?
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