Math

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I music store gives every 20th customer a five dollar gift card. Every 50th customer gets a $10 gift card. Which customer will be the first to receive both types of gift cards?

  • Math -

    20*5 = 50*2 = 100

  • Math -

    ggg

  • Math -

    Technically, since the 20th and 50th gets gift cards,
    it would be the least common multiple or LCM of 20 and 50.

    20: 20, 40, 60, 80, 100, 120 , 140
    50: 50, 100, 150, 200

    The LCM would be 100

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