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Time and Distance
A man travels by bus for 20 hours and they by train for 05 hours . if the average speed of the bus was 20 kmph and that of the entire journey was 24 kmph. What was the average speed of the train?(A) 44kmph(B) 30 kmph(C) 36 kmph(D) 40 kmph
sneha36
- Aug 29th, 2010
Total speed=24 km/hr Total time=time taken by bus + time taken by train=25 hours Total distance=24 * 25=600 km Distance covered by train=total distance - distance covered by bus Distance cover...
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Average Boat Speed
The speed of the boat is 36 kmph higher than that of the stream in which it travels . if it can travel 828 km downstream in 18 hours and the same in upstream in 23 hours , its average speed is __________.(A) 36 kmph(B) 41 kmph(C) 46 kmph(D) 31 kmph.
hydsarema
- Sep 28th, 2008
Here the average speed of the boat is 41initially let the speed of the stream be xthen 36+x=828/18=46therefore speed of stream is 10.while going upstream the speed of the boat will be reduced by 10 ...
