ISEE Word Problems Question 294: Answer and Explanation
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Question: 294
13. If there are 5,280 feet in a mile, and a dog runs 14 miles per hour, which of the following expressions shows the dog's speed in feet per minute?
- A.
- B.
- C.
- D.
Correct Answer: D
Explanation:
D
Begin by stating the speed as a fraction with the units marked: . Now, convert the miles in to feet. As there are 5,280 feet in a mile, multiply 14 in the numerator by 5,280:
. Now, convert the hour into minutes. As there are 60 minutes per hour, multiply the 1 in the denominator by 60:
.