College Math Placement Practice Test 2025 - Free College Math Questions and Study Guide

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Question: 1 / 400

What is the value of 20 divided by 0.5?

10

20

30

40

To determine the value of 20 divided by 0.5, you can think of dividing by a fraction or a decimal as multiplying by the reciprocal. Dividing by 0.5 is the same as multiplying by 2, since 0.5 is equal to 1/2.

When you perform the operation \( 20 \div 0.5 \), you are effectively calculating \( 20 \times 2 \). This yields a result of 40.

Therefore, the correct answer reflects that dividing by a number less than 1 will yield a result that is greater than the original number, which aligns with the operation you performed. This method of understanding division by decimals can greatly aid in similar calculations in future problems.

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