A car travels along a straight line for the first half time with 50 km per hour and second half time at the speed of 60 km per hour find average speed
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average speed =total distance travelled \total time taken
t.distance=110km
t.time=2hr
a.speed=110/2=55km/hr
t.distance=110km
t.time=2hr
a.speed=110/2=55km/hr
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