A car finishes a journey in ten hours at the speed of 65 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) 65 km/hr\n(D) 16 km/hr\n(E) None of these Stream of consciousness:
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Distance covered by the car = 65 × 10 = 650 km\n\ Speed = 650⁄5 = 130 km/hr\n\ Speed gain = 130 – 65 = 65 km/hr
Thus, the answer is (C).
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