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rajiv

· started a discussion

· 1 Months ago

solutiob (Question: 125117.0 )

provide a solution

Question:

Four bells begin to bell together and bell respectively at intervals of 5, 6, 8 and 12 seconds. How many times will they bell together in an hour excluding the one at the start:

Options:
A) 29
B) 19
C) 13
D) 9
Solution:
Ans:(a)

Knowledge Expert

· commented

· 1 Months ago

LCM of 5, 6, 8 and 12 = 120

the ring bell together in one hour =(60)*(60)/(120) = 30 times

Required answer = 30-1 = 29 times
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