two sprinters run the same race of 100 m .one run at speed of 10 m per second and the other runs at 8m per second .by what time will the first sprinter beat the other sprinter.
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Answer:
Distance =100m
Speed of 1st= 10m/sec
Time =100÷10=10sec
Speed of second=100÷8
=12.5sec
first sprinter beat the other sprinter by 12.5sec-10sec=2.5sec
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