Question:easy

Ritika and Sneha are standing in a row of girls. Ritika is 18th from the left end of the row, and Sneha is 24th from the right end. If they interchange their positions, Ritika becomes 31st from the left end. What will be the new position of Sneha from the right end?

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Shortcut: If one person's position increases by \(X\), the other's will also increase by \(X\). Ritika went from 18 to 31 (increase of 13). Therefore, Sneha will go from 24 to \(24 + 13 = \textbf{37}\).
Updated On: Jun 30, 2026
  • 35th
  • 36th
  • 37th
  • 38th
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The Correct Option is C

Solution and Explanation

Step 1: Use the post-interchange position of Ritika.
After the interchange, Ritika moves to Sneha's original position which was 24th from the right; Ritika's new rank from the left is 31.
Step 2: Find the total number of students.
Total = (Ritika's rank from left) + (Ritika's rank from right) $- 1$ = $31 + 24 - 1 = 54$ students.
Step 3: Find Sneha's new rank from the right.
Sneha moves to Ritika's original position which was 18th from the left; Sneha's rank from the right = $54 - 18 + 1 = 37$.
\[ \boxed{37} \]
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