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The radio station gave away a discount coupon for every twelfth and thirteenth caller. Every twentieth caller received free concert tickets. Which caller was the first to get both a coupon and a concert ticket? Explain your thinking.

1 Answer

5 votes

Answer:

60th caller.

the 12th caller would hit a number divisible by 20 at 60.

12,24,35,48,60

User Rchacko
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