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Find the Speed

An Engine length 1000 m moving at 10 m/s. A bird is flying from engine to end with x sec and coming back at 2x sec. Take total time of bird traveling as 187.5s. Find the to and fro speed of the bird.
This question is related to Dell Interview
Asked by: shafreenz | Member Since Aug-2010 | Asked on: Aug 30th, 2010

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Showing Answers 1 - 1 of 1 Answers
Sandhya.Kishan

Answered On : May 28th, 2012

View all answers by Sandhya.Kishan

distancetravelled by the bird=2000m
time taken=187.5 sec
=375/2 sec
speed is in the ratio of 1:2
dividing the time in the ratio of 1:2
time to=375/2(2/3)=125 sec
speed=distane/time=1000/125=8 m/sec
speed in thefro direction=16m/sec

  
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