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Reasoning
Mathematical Operations
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NTPC Graduate Tier 1 2025 Shift-3 📅 05 Jun, 2025

This question is based on the five, three-digit numbers given below.

662, 268, 547, 409, 909

(Example: 697 - First digit = 6, second digit = 9 and third digit = 7)
(NOTE: All operations to be done from left to right.)

What will be the resultant if the third digit of the highest number is subtracted from the first digit of the lowest number?

A
-8
B
-6
C
-4
D
-7
Result Summary
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NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-3
This question is based on the five, three-digit numbers given below.

662, 268, 547, 409, 909

(Example: 697 - First digit = 6, second digit = 9 and third digit = 7)
(NOTE: All operations to be done from left to right.)

What will be the resultant if the third digit of the highest number is subtracted from the first digit of the lowest number?
Correct Answer
-7
[Value Segregation Phase]: First, we must survey the provided numerical set {662, 268, 547, 409, 909} to identify the extreme values as requested by the prompt.......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Reasoning
Chapter -
Ref. Topic Mathematical Operations
Pg. No -
💡 Analysis & Explanation
[Value Segregation Phase] ▼
First, we must survey the provided numerical set {662, 268, 547, 409, 909} to identify the extreme values as requested by the prompt.
[Highest Number Extraction] ▼
Scanning the set, 909 is clearly the highest aggregate value. The question demands its 'third digit', which is the digit occupying the units place: 9.
[Lowest Number Extraction] ▼
Searching the set again, 268 is the absolute lowest value. The prompt instructs us to isolate its 'first digit', which is the digit in the hundreds place: 2.
[Mathematical Resolution] ▼
Finally, we must execute the mandated subtraction operation precisely as written. We subtract the extracted third digit (9) from the extracted first digit (2). Thus, the equation is 2 - 9, which equals -7.
Conclusion ▼
The final calculated resultant is unequivocally -7.
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