SSAT Math Question 255: Answer and Explanation
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Question: 255
9. There are 21 flats of pansies at a garden center that need to be delivered. If at least one but no more than six flats must go into each vehicle and no two vehicles have the same number of flats, what is the smallest number of vehicles required to deliver the 21 flats of pansies?
- A. 21
- B. 12
- C. 10
- D. 8
Correct Answer: E
Explanation:
The answer is E
This question requires you to work through the possibilities, based on the restrictions (maximum 6 flats, no repeated numbers of flats). Thus, the first vehicle can carry 6 flats, the second 5 (for a total of 11 flats), the third 4 (total of 15), the fourth 3 (total of 18), the fifth 2 (total of 20), and the sixth 1 (total of 21). Thus, 6 vehicles are needed.