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Ranking
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NTPC Graduate Tier 1 2025 Shift-2 📅 06 Jun, 2025

Piyush ranked 24th from the top and 55th from the bottom in his class. How many students are there in his class?

A
79
B
77
C
78
D
76
Result Summary
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NTPC Graduate Tier 1
2025 • 06 Jun, 2025 • Shift-2
Piyush ranked 24th from the top and 55th from the bottom in his class. How many students are there in his class?
Correct Answer
78
Ranking Principle: In basic sequence puzzles, to mathematically deduce the absolute total number of unique individuals standing in a linear sequence when the ex......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Reasoning
Chapter -
Ref. Topic Ranking
Pg. No -
💡 Analysis & Explanation
Ranking Principle ▼
In basic sequence puzzles, to mathematically deduce the absolute total number of unique individuals standing in a linear sequence when the exact numerical position of a single identified person is reliably given from both ends, a specific standard formula is universally utilized: Total Population = (Top Position + Bottom Position) - 1.
Data Application ▼
Based on the provided test metrics, Piyush's static rank is documented as 24 from the upper top end and 55 from the lower bottom end. Substituting these hard data points directly into our analytical equation gives Total = 24 + 55 - 1.
Final Calculation ▼
First, simply adding the raw positional ranks naturally yields 79. Then, crucially subtracting the 1 (which acts to mathematically correct for mistakenly counting the identical individual, Piyush, twice in the sequence) perfectly results in the accurate figure of 78.
Conclusion ▼
There are securely and exactly 78 total enrolled students occupying the class.
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