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    Question

    Find the distance travelled (in km) by the truck to

    reach point B from point A, if a car cover 45% the same distance in 2 hours 42 minutes and a truck covers 30% of the distance in 3 hours. The sum of speed of the car and truck is 80 km/hr.
    A 100 km Correct Answer Incorrect Answer
    B 150 km Correct Answer Incorrect Answer
    C 130 km Correct Answer Incorrect Answer
    D 60 km Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let speed of car be s kmph Time taken by car travel total distance = 100/45 x 2.7 = 6 hrs Time taken by truck to cover total distance = 100/30 x 3 = 10 hrs so, s x 6 = (80 - s) x 10 6s = 800 - 10s so, riquired distance = 50 x 3 = 150 km

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