ISEE Mathematics Achievement Question 201: Answer and Explanation
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Question: 201
7. It costs n dollars to buy 10 boxes of crackers. At the same rate, how many dollars will it cost to buy 25 boxes of crackers?
- A. 2.5n
- B. 25n
- C.
- D.
Correct Answer: A
Explanation:
A is correct. It costs n dollars to buy 10 boxes. Since 25 = 2.5 × 10, it will cost 2.5n dollars to buy 25 boxes.