A wall clock strikes 12 and it takes 33 seconds to do so. How much time it will take to strike 4?
A
9 seconds
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B
10 seconds
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C
11 seconds
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D
12 seconds
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Solution
The correct option is B 9 seconds There are 11 intervals between the first strike and 12 th strike. It takes 33 seconds in total.
So duration of each interval is 3311 = 3 sec Now to strike 4, there will be 3 intervals between first strike and fourth. Hence, it will take: 3×3 = 9 seconds