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There are 15 poles in a straight line each equally placed from
each other. The time taken to reach the 10th pole after a man starts
walking from 1st pole is 10 seconds. What is the time required to
reach 15th pole.
Let any two poles be placed x units apart.
Distance between 1st and 10th pole=(10-1)x=9x units.
Distance between 1st and 15th pole=(15-1)x=14x units.
If time taken to cover 9x units is 10 seconds,
then time taken to cover 14x units is.....
(10*14x)/9x = 15.55 seconds.



  
Total Answers and Comments: 1 Last Update: April 13, 2006     Asked by: Beena 
  
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 Best Rated Answer

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April 13, 2006 02:07:07   #1  
manohar        

RE: There are 15 poles in a straight line each equally...

The time taken to cross the poles from 1st pole to 10th pole(i.e 9 poles ) is 10 sec.

Then the time taken to cross 1 pole is 10/9 sec.

Therefore the time taken to cross the poles from 1st pole to 15th pole(i.e 14 poles) is (10/9)*14 15.55 sec.

B.V.Manohar

K.E.C


 
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