Car X and car Y traveled the same 80 kms route. If car X took 2 hours and car Y traveled at an average speed that was 50 percent faster than the average speed of car X, how many hours did it take car Y to travel the route?
A
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B
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C
1
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D
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Solution
The correct option is B Average speed of car X=802=40kmph:Average speed of carY=(50100×40)+40=60No. of hours taken by CarY=8060=113