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A train travels at a certain …

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A train travels at a certain average speed for a distance of 63 km and then Travels at a distance of 72 km at the average speed 6 kilometre per hour more than its original speed if it takes 3 hours to complete today's journey what is the total original speed

    • Posted by Ishu King 6 years, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Vanshika Chhillar 6 years, 2 months ago

    Let the original speed of train be x km/hr. Total time taken = 3 hr According to the question, 63/x + 72/x+6= 3 Do it yourself by forming the equation the equation would be x^2-39x-126=0 Answer will come out to be 42 km/hr.

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