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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 an average speed of 6km/hr more than it's original speed.if it takes 3hours to complete total journey, what is the original average speed?

    • Posted by Yogesh Bisht 7 years, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Anjali Chauhan 7 years, 8 months ago

    Let the original speed be xkm/h. Therefore 63/x +72/x+6 =3 (solve this equation the value of x will be 42km/h)

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