Ranking test – convert right-rank to left-rank: Rashmi is 14th from the right end in a row of 40 girls. What is Rashmi's position from the left end?

Difficulty: Easy

Correct Answer: 27th

Explanation:


Introduction / Context:
Left/right rank conversions rely on a single identity relating total count and positions from either end. This problem checks that formula and careful substitution.



Given Data / Assumptions:

  • Total girls N = 40.
  • Rashmi's rank from the right = 14.
  • All are in a single straight line; no gaps/duplicates.


Concept / Approach:
Use the conversion: position_from_left = N − position_from_right + 1. This counts how many stand before her from the left side.



Step-by-Step Solution:

position_from_left = 40 − 14 + 1= 26 + 1= 27.


Verification / Alternative check:
If she is 14th from the right, there are 13 to her right and therefore 40 − 13 − 1 = 26 to her left; counting Rashmi gives 27th from left—consistent.



Why Other Options Are Wrong:
Values like 25th or 26th come from forgetting the “+1” term; “21th” miscalculates the gap.



Common Pitfalls:
Dropping the “+1,” or confusing direction (left vs right) especially under time pressure.



Final Answer:
27th

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