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 15 of 17.
Sruthi said:
1 decade ago
Why at last 1 has been added?
Manju said:
1 decade ago
Awesome explaination sravan.
Mahagopi said:
9 years ago
Thanks for your explanation.
ASHNA said:
6 years ago
Thanks @Saravan and @Deepak.
Michael said:
6 years ago
Why 1 is added? Explain it.
Revathy said:
1 decade ago
Why do you divide 30 by 2?
(1)
Krishna said:
1 decade ago
Thank you Sravan I got it.
Imran said:
7 years ago
Nice explanation @Saravan.
KUSHAL said:
1 decade ago
Super explanation sundar.
Mahesh said:
10 years ago
How do you get that 120?
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