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Wednesday, March 23, 2011

WIPRO Placement Paper (Aptitude and Technical) 27 January 2010 - Part 4

11. A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both taps are opened simultaneously, then after how much time will the cistern get filled ?
4.5 hours   5 hours   6.5 hours   7.2 hours 

12. Pipe a can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank completely ?
6 min. to empty   6 min to fill   9 min. to empty   9 min. to fill 

13. A thief steals a car at 2.30 p.m and drives it at 60 kmph. The theft is discovered at 3 p.m and the owner sets off in another car at 75 kmph. When will be overtake the thief.
4.30 p.m  4.45 p.m  5 p.m  5.15 p.m 

14. Two trains starting at the same time from two stations 200 km apart, and going in opposite directions cross each other at a
distance of 110 km from one of the stations. What is the ratio of their speeds
9 : 20   11 : 9   11 : 20   None of these 

15. Two trains each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is
30 km /hr   45 km / hr   60 km/hr   75 km/hr 

Part I        Part II        Part III        Part IV

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