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1. In how many ways may the letters of the word “EQUATION” be arranged such that each arrangement begins and ends with a vowel?

A. 2,720 B. 3,240 C. 14,400 D. 13,600

2. How many permutations can be made by using the letters in the word PANDEMIC?

A. 14,400 B. 52,540 C. 15,120 D. 40,320


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