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:
172 comments Page 11 of 18.
Anare.vadei said:
1 decade ago
Why use 120 seconds? What does it represent?
Sahil said:
1 decade ago
@Anare: it represents that after every 120sec bells toll together.
Nanuram jamra said:
1 decade ago
As per my calculation, the correct answer is 15.
Shanmathi said:
1 decade ago
Nice post @Sundar.
Kinjal said:
1 decade ago
Nice Explanation @Sravanreddypailla.
Kalyan said:
1 decade ago
Thanks @Sundar.
Salman pasha said:
1 decade ago
But why we should divide episode by 2 (120 sec)?
Lahu said:
1 decade ago
@Balaraju Hari.
It is Awesome, Thanks for your explanation.
It is Awesome, Thanks for your explanation.
K.gayathri said:
10 years ago
What is mean by toll?
Mahagopi said:
10 years ago
Thanks for your explanation.
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