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16 December, 22:25

Janet and her brother John went out to eat. Both paid the same amount. Janet got three burgers and left a $10 tip. John bought 4 burgers, but only left a $5 tip. 1. What was the cost of each burger? 2. What did each Janet and John pay?

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  1. 16 December, 22:31
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    Cost for 1 burger = 5 $

    Amount spent by Janet = 25$

    Amount spent by John = 25$

    Explanation:

    Let the cost for burger be p.

    Janet got three burgers and left a $10 tip

    Amount spent by Janet = 3 p + 10

    John bought 4 burgers, but only left a $5 tip

    Amount spent by John = 4 p + 5

    Both paid the same amount.

    So, we have 3 p + 10 = 4 p + 5

    => p = 5 $

    So, cost for 1 burger = 5 $

    Amount spent by Janet = 3 x 5 + 10 = 25$

    Amount spent by John = 4 x 5 + 5 = 25$
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