Five people sit in a row. If Ali does not sit at either end, how many seats could Ali occupy in a row of five?
- A. two
- B. three
- C. four
- D. five
Explanation
Excluding the two end seats leaves the three middle positions, seats 2, 3 and 4. Counting the permitted positions rather than the forbidden ones is quicker here. In a row of n seats with both ends excluded, n minus 2 places remain.
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