Q: A car finishes a journey in ten hours at the speed of 50 km/hr. If the same distance is to be covered in five hours how much more speed does the car have to gain?\nOptions:\n(A) 8 km/hr\n(B) 10 km/hr\n(C) 12 km/hr\n(D) 16 km/hr\n(E) 50 km/hr Let's give some random thoughts before answering.
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Distance covered by the car = 50 × 10 = 500 km\n\ Speed = 500⁄5 = 100 km/hr\n\ Speed gain = 100 – 50 = 50 km/hr
Therefore, the answer is (E).
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