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A clock takes 9 seconds to strike 4 times. In order to strike 12 times at the same rate, the time taken is:

Correct Answer: 33 seconds

Explanation:

As we can say that ,
There are 3 intervals when the clock strikes 4 Time taken in 3 intervals = 9 seconds
∴ Time taken for 1 interval = 3 seconds
In order to strike 12, there are 11 intervals, for which the time taken is 11 × 3 seconds = 33 seconds.
Therefore , Required time taken is 33 seconds .


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