If a race of 200 metre, runs at speed of 10m/minute and B runs at a speed of 8m/sec. By what time will A beat B
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d=200m
speed of a =10m/1sec
time taken by a=200/10=20sec
speed of b=8m/1 sec
time taken by b =200/8=25sec
so a beat b by 5 seconds
speed of a =10m/1sec
time taken by a=200/10=20sec
speed of b=8m/1 sec
time taken by b =200/8=25sec
so a beat b by 5 seconds
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