4 bells toll together at 9:00 am. they toll after 7,8,11 and 12 seconds respectively. How many times will they toll together again in next 3 hours.
Asked by mridulla dharshini
| 14th May, 2012,
05:55: PM
Expert Answer:
Taking lcm (7,8,11,12) = 1848
After every 1848 secs they will toll together.
In 3 hours there are 10800 secs ..
so they will toll together 5 times in the next 3 hours.
After every 1848 secs they will toll together.
Answered by
| 15th May, 2012,
09:58: AM
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