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 11 of 17.
Kyra said:
2 years ago
why did we divide 30 by 2? Please explain me.
(26)
Anare.vadei said:
9 years ago
Why use 120 seconds? What does it represent?
Trai said:
7 years ago
Excellent explanation @Sravan, thanks a lot!
S.Rohini said:
5 years ago
Why do we want to take lcm? Please explain.
(10)
Rahul said:
1 decade ago
Thanks Sravanreddypailla. Its truly good.
Lakshmisha said:
1 decade ago
@Sravanreddypailla, excellent dude...!!!
Renuka said:
10 years ago
Really it is a good explanation. Thanks.
Lalit Salaria said:
9 years ago
Can anyone answer for Secotad question?
Pinky said:
7 years ago
Excellent explanation, Thanks @Saravan.
Divya said:
1 decade ago
Please present answer to fozia sheihk.
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