Latest Others Aptitude Question SOLUTION: Q. The pendulum of a clock takes 7s to strike 4 o'clock. How much time will it take to strike 11 o'clock? Option A. 18 s B. 20 s C. 19.25 s D. 23.33 s

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Q. The pendulum of a clock takes 7s to strike 4 o'clock. How much time will it take to strike 11 o'clock?

Option
A. 18 s
B. 20 s
C. 19.25 s
D. 23.33 s

Asked In Others chithra nair (10 years ago)

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G.Sagarika  (10 years ago)

ans is C.19.25 s.
for 4o'clock pendulum strikes 4 times...and it took 7 sec so for striking 1 hr means one time it will take 7/4 sec.
and for srtiking 11 hours it will take 11*7/4s=19.25s

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suchismita majhi  (6 years ago)

The more relevant thing in this case is not the number of strikes but the number of time intervals.

If a clock has to strike 4, there are 3 time intervals between the 4 strikes So, in 7 seconds the pendulum elapses 3 time intervals.

To strike 11, there has to be 10 time intervals, which will take (10 x 7)/3 = 23.33 seconds.

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