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  • Question
  • The average weight of 45 passengers in a bus is 52 kg. 5 of them whose average weight is 48 kg leave the bus and other 5 passengers whose average weight is 54 kg join the bus at the same stop. What is the new average weight of the bus?


  • Options
  • A. 54.21 kgs
  • B. 51.07 kgs
  • C. 52.66 kgs
  • D. 53.45 kgs

  • Correct Answer
  • 52.66 kgs 

    Explanation

    Given total number of passengers in the bus = 45

    First average weight of 45 passengers = 52 kgs

    Average weight of 5 passengers who leave bus = 48

    Average weight of passengers who joined the bus = 54

    Therefore, the net average weight of the bus is given by

    =   45   x   52   -   5   x   48   +   5   x   54 45   =   2370 45 =   158 3 =   52 . 66   kgs .

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