In a row of students, Ravi is 12th from the left and 4th from the right. How many students are in the row?
Answer and explanation
Correct answer: B. 15
- Step 1: In a single queue, counting an individual's position from both left and right ends counts that individual twice.
- Step 2: Apply the row total formula: .
- Step 3: Compute: .
Answer
15.
Why not the others: 16 forgets to subtract 1 (); 17 adds 1; 48 multiplies the ranks ().
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