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| Total Answers and Comments: 19 |
Last Update: May 22, 2009 |
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Submitted by: SmartMan
lap=x Km
time for 1lap=x/10 h,2 lap=x/20 h,...
all time = x/10+x/20+x/30+x/60=x/5
average speed=4x/x/5=20 kmph
Above answer was rated as good by the following members:
m_manic, Ragavendran, anjali_aiet, anoopmac, chaitu038 | | Sorting Options | |
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September 28, 2005 05:32:46 | #8 |
| Abhishek |
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RE: If A driver drives a car four times a lap 1...
| (4*10+4*20+4*30+4*60)/16 480/16 30 kmph
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November 23, 2005 03:32:31 | #9 |
| Sheetal Salunkhe |
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RE: If A driver drives a car four times a lap 1...
| 1st lap 10kmph 2nd 20kmph 3rd lap 60kmph average (10+20+30+60)/4 120/4 30kmph average speed 30 kmph
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November 24, 2005 06:12:12 | #10 |
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RE: If A driver drives a car four times a lap 1...
| Avg Speed Total Distance/Total Time One lap x Km
Time for 1 lap x/10 h 2 lap x/20 h ...
Total time x/10+x/20+x/30+x/60 x/5
Hence Average speed 4x/x/5 20 kmph
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