Reasoning • Order & RankingHard
In a row, P is 17th from the left end and N is 18th from the right end. When P and N interchange their positions, P becomes 30th from the left end. How many people are there in the row?
A. 34
B. 47✓ Correct Answer
C. 48
D. 45
💡 Solution & Explanation
After the swap, P stands where N stood. So N's old place is 30th from the left and 18th from the right. Total = 30 + 18 − 1 = 47.
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