Aptitude - One student takes 20 mins to reach school if he goes at a speed of 15kmph .At what speed should he g

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One student takes 20 mins to reach school if he goes at a speed of 15kmph .At what

speed should he go to reach in 15 mins ( nos are not same)

Total Answers and Comments: 3

Last Update: October 27, 2009

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July 17, 2005 13:42:17

nmodi

RE: One student takes 20 mins to reach school if he goes at a speed of 15kmph .At what speed should he g...

Ans. 20

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March 04, 2006 02:03:28

radibioinfo

Member Since: February 2006 Contribution: 31

One student takes 20 mins to reach school i...

Speed (distance/ time)(d/20) 15d 300kmnow required speed (d/t) (300/15) 20kmph

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October 26, 2009 22:53:19

hari2912

Member Since: October 2009 Contribution: 2

RE: One student takes 20 mins to reach school if he goes at a speed of 15kmph .At what speed should he go to reach in 15 mins ( nos are not same)

T1 20 min 1/3 hr
S1 15 Kmph
D S*T
1/3 * 15
5 Km
T2 15 min 1/4 hr
S2 D/T2
5/(1/4)
20 Kmph

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