FTCE General Knowledge Math Practice Test

What is the equivalent of 2.54 centimeters in inches?

1. 1 in

2. 1.5 in

3. 2 in

4. 0.5 in

The correct answer is: 1 in

To determine the equivalent of 2.54 centimeters in inches, it's important to understand the conversion factor between these two units of measurement. The conversion factor is that 1 inch is equal to 2.54 centimeters. Thus, to convert centimeters to inches, you divide the number of centimeters by the conversion factor. In this case, for 2.54 centimeters, the conversion to inches would be: \[ \text{Number of inches} = \frac{2.54 \text{ cm}}{2.54 \text{ cm/inch}} = 1 \text{ inch} \] Therefore, 2.54 centimeters corresponds exactly to 1 inch. This understanding facilitates accurate unit conversions in various applications, especially in measurements where both metric and imperial systems are used.