. A biker drives from point P to point Q with a uniform speed of 25 m/s & returns on the same path with a speed of 20 m/s. His average speed is:
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0
Answer:
(25+20)/2
Explanation:
solve this for the average speed
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2
Answer:
let the length of the line segment AB be×m
the time taken is given at t=distance covered /speed
total time =t1+t2 =x/30+x/20=5x/60 h
Average speed =total distance/total time
=2x/60 =24 km/h
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