Aptitude - If a car starts from A towards B with some velocity due to some problem in the engine after travelin

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If a car starts from A towards B with some velocity due to some problem in the engine after traveling 30km.If the car goes with 4/5 th of its actual velocity the car reaches B 45min later to the actual time. If the car engine fails after traveling 45km, the car reaches the destination B 36min late to the actual time , what is the initial velocity of car and what is the distance between A and B in km

20 & 130

Total Answers and Comments: 4

Last Update: October 30, 2007

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April 23, 2006 13:51:47

manish singh

Member Since: April 2006 Contribution: 2

RE: If a car starts from A towards B with some ...

correct ans is 20km/hr & 90 km

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July 04, 2006 13:12:07

sriii

RE: If a car starts from A towards B with some ...

Can you give a clear explaination please.

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April 13, 2007 04:53:50

gaurav jagga

RE: If a car starts from A towards B with some ...

distant between a&b is 135 km
vel. 37.5km/hr

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October 30, 2007 06:59:31

Chul Min Kang

RE: If a car starts from A towards B with some ...

Assume that Y is the distance from A to B and X is the velocity.

y/x + 3/4 30/x + (y-30)/(4x/5) // '3/4' means 3/4 hour(45 min).
y/x + 3/5 45/x + (y-45)/(4x/5) // '3/5' means 3/5 hour(36 min).

The answer is
x 25(km/h) y 105(km)

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