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 10 of 17.
Tufail said:
8 years ago
Nice explanations thanks for the help.
Thank you.
Thank you.
Ashif said:
7 years ago
Excellent explanation. Thank you so much. @Sravan.
Ravi said:
3 years ago
@All.
Because initially, it's starting at 0 sec.
Because initially, it's starting at 0 sec.
(16)
Nanuram jamra said:
9 years ago
As per my calculation, the correct answer is 15.
Salman pasha said:
9 years ago
But why we should divide episode by 2 (120 sec)?
Roxanne Santiago said:
8 years ago
Thanks for the explanation. It cleared my doubt.
Rinkz said:
9 years ago
Thanks, all of you solvers. It's really useful.
Divyansh said:
9 years ago
Can anyone please say it Ring or Start ringing?
Poornima said:
8 years ago
I clearly understand the answer thank you all.
Ashu said:
5 years ago
How to find LCM for this? Please tell someone.
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