Saturday 22 November 2014

The Gong



              Supposing a clock takes 7 seconds to strike, 7. How long will the same clock take to strike 10?

Answer:  While striking 7 the clock strikes its first gong at 7 o’ clock and it strikes 6 more at regular intervals. These 6 intervals take 7 seconds so that the interval between gongs is 7/6 seconds. However, to strike 10 there are 9 intervals each taking 7/6 seconds for a total 10 ½ seconds.

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