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30 September, 22:55

The cost for a movie ticket is $7. The cost is reduced to $5 for groups of 10 or more. How many people must be in the group for them to save a total of $30?

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  1. 30 September, 23:04
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    There must be 15 in the group

    15*$7=$105

    15*$5=$75

    105-75=$30
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