A car travel first 50km at a uniform speed of 25km/ h and next 60km at uniform speed of 20 km/ h calculate the average speed of car
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Answer:
to calculate average speed first we have to find time from given speed and distance
[ time = distance / speed]
(i) time = 50 km / 25km/hr
= 2 hr
(ii) time = 60km / 20km/ hr
= 3hr
now ,
average speed =total distance covered / total time taken
= 50km + 60km / 2hr + 3hr
= 110km / 5hr
= 22 km/ hr
average speed = 22km/ hr
hope it helps you
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