Question 32

A clock strikes 4 taking 9 seconds. In order to strike 12 at the same rate, the time taken is

Solution

A clock strikes 4, taking 9 seconds.

There are three intervals between the four strikes.

Time taken = 9 seconds

Therefore, the rate of interval taken = 9/3 = 3 seconds per interval.

To strike for 12, there will be 11 intervals.

Time per interval = 3 seconds

Total time taken = 11*3 = 33 seconds.

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