. two trains of length 1/6 miles are moving towardeach other with a speed of 60 miles per hour.aproaching toward each other In how much timethey will cover each other.ans.10 secPLEASE TELL THE APPROACH FOR TIS

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tmhasan7

  • Sep 25th, 2006
 

1. Its obvious that since the trains travel towards each other the speed is 60+60 miles/hr

2. The two trains will take 2/6 miles to cross themselves, since the length of the train is 1/6 miles.

3. If it is 3600 sec for 120 miles, then x sec for 2/6 miles

Therefore 120/3600 = (2/6)/x

x=10 sec.

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atreya

  • Aug 28th, 2012
 

total dist travelled=(1/6+1/6)=1/3miles
relative speed=(60+60)=120miles per hour
therefore,
time=dist/speed
=(1/3)/120=(1/360)hours=10secs(1hr=3600secs).

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