Question:

In a row of students, Stephen is sitting 3rd to the left of Robert. If Robert is 10th from the leftmost end and 6th from the rightmost end, then what is the position of Stephen from the rightmost end?

Updated On: Mar 23, 2026
  • 8th
  • 9th
  • 7th
  • 6th
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The Correct Option is B

Solution and Explanation

Step 1: Defining the Total Number of Students 

Let the total number of students in the row be denoted as N.

Step 2: Finding the Total Number of Students

Robert is 10th from the left and 6th from the right, so the total number of students is:

N = 10 + 6 - 1 = 15

Step 3: Finding Stephen's Position from the Left

Stephen is sitting 3rd to the left of Robert, so Stephen is at position:

10 - 3 = 7

Step 4: Finding Stephen's Position from the Right

Now, to find Stephen’s position from the rightmost end, we calculate:

15 - 7 + 1 = 9

Final Answer: Therefore, the correct answer is (b) 9th.

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