ISEE Mathematics Achievement Question 52: Answer and Explanation
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Question: 52
10. 7 days 3 hours 20 minutes - 4 days 9 hours 31 minutes =
- A. 2 days 17 hours 49 minutes
- B. 2 days 17 hours 69 minutes
- C. 3 days 10 hours 49 minutes
- D. 3 days 10 hours 69 minutes
Correct Answer: A
Explanation:
The correct answer is (A). You must borrow one day's worth of hours and one hour's worth of minutes and rewrite the problem as:
6 days 26 hr. 80 min.
- 4 days 9 hr. 31 min.
2 days 17 hr. 49 min.