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27 December, 13:36

The price of a math book is 50$ but you only have 35$ if you get a discount of 20% how much money do you need?

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  1. 27 December, 13:48
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    Price of the book = $50

    20% discount = 0.2 x 50 = $10

    After discount, the price of the book is

    $50 - $10 = $40

    I have $35, so I need

    $40 - $35 = $5 more

    Answer: I need to borrow $5 from a friend.
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