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In a class of students, if X is ranked 5th from the top and Y is ranked 10th fro

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Question: In a class of students, if X is ranked 5th from the top and Y is ranked 10th from the bottom, what is the total number of students in the class? (2023)

Options:

  1. 14
  2. 15
  3. 16
  4. 17

Correct Answer: 15

Exam Year: 2023

Solution: 

If X is 5th from the top and Y is 10th from the bottom, then the total number of students is 5 + 10 - 1 = 14.

In a class of students, if X is ranked 5th from the top and Y is ranked 10th fro

Practice Questions

Q1
In a class of students, if X is ranked 5th from the top and Y is ranked 10th from the bottom, what is the total number of students in the class? (2023)
  1. 14
  2. 15
  3. 16
  4. 17

Questions & Step-by-Step Solutions

In a class of students, if X is ranked 5th from the top and Y is ranked 10th from the bottom, what is the total number of students in the class? (2023)
  • Step 1: Understand that X is ranked 5th from the top. This means there are 4 students above X.
  • Step 2: Understand that Y is ranked 10th from the bottom. This means there are 9 students below Y.
  • Step 3: To find the total number of students, add the number of students above X (4) to the number of students below Y (9) and then add 1 for X himself.
  • Step 4: Calculate: 4 (students above X) + 9 (students below Y) + 1 (X) = 14.
  • Step 5: Therefore, the total number of students in the class is 14.
  • Ranking in a List – Understanding how to calculate total number of items based on rankings from both ends.
  • Basic Arithmetic – Applying addition and subtraction to derive the total number of students.
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