GMAT Exam Category

Express a speed of 54 km/hr in meters/second. a)15 m/sec b)20 m/sec c)25 m/sec d)30 m/sec

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GMAT Other Question
Two trains of length 150 m and 250m run on parallel lines. When they run in the same direction it will take 20 seconds to cross each other and when they run in opposite direction it will take 5 seconds. Find the speeds of the two trains.
a)180 and 108 b)272 and 211 c)123 and 828 d)none of these
 A car can cover 350 km in 4 hours. If the speed is decreased by 12 1/2 kmph, how much time does the car take to cover a distance of 450 km? a)4 hrs b)5 hrs c)2 hrs d)6 hrs