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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 than its original speed.if it takes 3 hours to complete total journey ,what is the original average speed?

    • Posted by Pritika Limboo 2 weeks, 4 days ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Bhavya Sharma 2 weeks, 3 days ago

    Let x be the original average speed of the train in km/hr. We know the total distance traveled is 63 km + 72 km = 135 km. We can express the time taken for each part of the journey using the formula time = distance / speed. Time for the first 63 km: 63 km / x hours Time for the second 72 km: 72 km / (x + 6) hours (since the speed is 6 km/hr faster than the original speed) The total time taken is 3 hours, so we can set up an equation: 63 km / x hours + 72 km / (x + 6) hours = 3 hours

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