WBCS.LIVE practice question

In a queue of students, Amit is 15th from the front and Sumit is 20th from the back. When they completely interchange their positions, Amit becomes 25th from the front. What is the total number of students in the queue?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 45
  2. 46
  3. 43
  4. 44

Correct answer and explanation

Correct answer: 44

Explanation: āœ… Correct Answer: D) 44 šŸ“š Explanation: After interchanging, Amit occupies Sumit's original position. We now know that this specific position is 25th from the front (Amit's new rank) and 20th from the back (Sumit's old rank). The total number of students can be calculated as: (Rank from front + Rank from back) - 1. This gives (25 + 20) - 1 = 44.