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The Gong

If a clock takes 6 seconds to strike 6. How long the same clock take to strike 12.

Can you find the answer?


  1. Anonymous said...
    ans 1.2*11=13.2minutes
    Anonymous said...
    Math said...
    While striking 6 the clock strikes its first gong at 6 O' clock and it strikes 5 more regular intervals. these 5 intervals take 6 seconds so that the intervals between gongs is 6/5 seconds. so strike 12 O' clock there will be 11 intervals each takes 6/5 seconds .
    so, it takes 11*6/5=13.2 seconds .

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