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2001 AMC 10 Problem 7

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2001 AMC 10 Problem 7AMC 10 Step by Step
Name:                             Date: September 13, 2026
Fractions & Decimals · difficulty 2 of 5 · about 2 min · position P1-10

When the decimal point of a certain positive decimal number is moved four places to the right, the new number is four times the reciprocal of the original number. What is the original number?

  1. A)

    0.00020.0002

  2. B)

    0.0020.002

  3. C)

    0.020.02

  4. D)

    0.20.2

  5. E)

    22

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