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A bus stopped at Gulgong, 25% of the passengers got off the bus and 3 new passengers got on. At the next stop,3 quarter of the passengers got off the bus and 11 new passengers got on. The bus then had 17 passengers.How many passengers did the bus have just before it stopped at Gulgong ?

  • math -

    X Passengers before stopping at Gulgong.

    0.75x Remains.

    0.75x+3.

    0.25(0.75x+3)+11 = 17.
    0.1875x + 0.75 = 17-11 = 6.
    0.1875x = 5.25
    X = 28.

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