2018 AMC 10 B

Complete problem set with solutions and individual problem pages

Problem 1 Easy

Kate bakes a 20-inch by 18-inch pan of cornbread. The cornbread is cut into pieces that measure 2 inches by 2 inches. How many pieces of cornbread does the pan contain? (2018 AMC 10B Problem, Question#1)

  • A.

    90

  • B.

    100

  • C.

    180

  • D.

    200

  • E.

    360

Answer:A

The area of the pan is 20\times 18=360. Since the area of each piece is 4, there are \frac{360}{4}=90 pieces.

Thus, the answer is \rm A.

By dividing each of the dimensions by 2, we get a 10\times 9 grid which makes 90 pieces. Thus, the answer is \rm A.

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