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14 January, 14:16

At the movie theatre, child admission is 5.20

and adult admission is 9.30

. On Tuesday, twice as many adult tickets as child tickets were sold, for a total sales of 785.40

. How many child tickets were sold that day?

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  1. 14 January, 17:05
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    5.20c + 9.30a=785.40

    a=2c

    5.20c+9.30*2c=785.40

    5.20c+18.60c=785.40

    23.80c=785.40

    c=785.40/23.80 = 33 child ticket
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