a car travels the first half of distance between two places a speed of 30 km/hr and second half of the distance a 50 km/ hr . the average speed of the car for the whole journey is
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avg speed =2xy/x+y
2*30*50/30+50
2*1500/80
3000/80
300/8
=37.5kmph
avg speed= 37.5kmph
2*30*50/30+50
2*1500/80
3000/80
300/8
=37.5kmph
avg speed= 37.5kmph
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