Six bells commence tolling together and toll at intervals 2,4,6,8,10 and 12 sec respectively. In 30min how many times toll together? Select one: a. 16 b. 17 c. 18 d. 19
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Answered by
1
Answer:
16
Step-by-step explanation:
they toll together after every
LCM(2,4,6,8,10,12) = 120 sec = 2 mins.
so they toll together
= 1 time(initially) + 30/2 = 16 times
option (a) seems correct
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