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The problem asks to determine which of the given speeds, measured in centimeters per hour (cm/h), are faster than 60 inches per hour.

First, let's convert 60 inches per hour into centimeters per hour.

1 inch = 2.54 centimeters.

So,
\[
60 \text{ inches per hour} \times 2.54 = 152.4 \text{ cm per hour}.
\]

Now, we compare this value (152.4 cm per hour) with the given options:

- A. 60 cm per hour (slower than 152.4 cm/h)
- B. 106.2 cm per hour (slower than 152.4 cm/h)
- C. 152.4 cm per hour (equal to 152.4 cm/h, not faster)
- D. 155.9 cm per hour (faster than 152.4 cm/h)
- E. 159.5 cm per hour (faster than 152.4 cm/h)

Therefore, the correct answers are **D (155.9 cm per hour)** and **E (159.5 cm per hour)**.

Would you like more details on the conversion or the process? Here are some related questions:

1. How would you convert feet per hour to centimeters per hour?
2. What is the difference between speed and velocity in terms of measurement?
3. Why is the metric system more commonly used for scientific measurements?
4. Can you explain how to convert other common units of length into centimeters?
5. What are some practical examples where converting units like these is important?

**Tip:** When converting between different units, always check for the conversion factor, like 1 inch = 2.54 cm.

A snail travels at 60 inches per hour. Choose all the metric measures that are faster than 60 inches per hour.

Learn how to convert 60 inches per hour to centimeters per hour and determine which of the given speeds are faster. This problem involves unit conversion using the formula 1 inch = 2.54 cm. Suitable for Grade 7 math students.

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