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12 August, 08:25

A family purchased tickets for a concert. they paid a total of $90 for 7 adult tickets and 12 child tickets. the price of a child ticket was two-thirds the price of an adult ticket. How much was the price of an adult ticket

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  1. 12 August, 08:54
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    Let price of adult tickets be X and that of Child tickets be Y.

    90 = 7X + 12Y

    Y=2/3 X

    90 = 7X + 12 (2/3 X) = 15X

    X=6, and also hence Y = 4

    Therefore Price of adult tickets, X = 6
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