A motorist travel to a place 150 km away
Asked by admin @ in Math viewed by 278 People
A motorist travels to a place 150km away at an average speed of 50km per hour and returns at 30km per hour. His average speed for whole journey in km per hour is?
Answered by admin @
Avg speed=2xy/x+y
2×50×30/50+30
3000/80
300/8
150/4
75/2
37.5kmph is answer obtained
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