Math

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?

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asked by Ava
  1. 20*5 = 50*2 = 100

    posted by Damon
  2. ggg

    posted by Anonymous
  3. 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

    posted by Cyrus Lasaki

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