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General Intelligence & Reasoning
Number Logic
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NTPC Graduate Tier 1 2025 Shift-2 📅 05 Jun, 2025

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 6154932, how many digits will appear more than once in the new number thus formed?

A
Three
B
Four
C
Two
D
One
Result Summary
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NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-2
If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 6154932, how many digits will appear more than once in the new number thus formed?
Correct Answer
Two
Transformation Protocol (Even Digits): Scanning the original number 6154932, the even digits are 6, 4, 2. Adding 2 updates them to 8, 6, 4.Transformation Protoc......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject General Intelligence & Reasoning
Chapter -
Ref. Topic Number Logic
Pg. No -
💡 Analysis & Explanation
Transformation Protocol (Even Digits) ▼
Scanning the original number 6154932, the even digits are 6, 4, 2. Adding 2 updates them to 8, 6, 4.
Transformation Protocol (Odd Digits) ▼
The odd digits stand at 1, 5, 9, 3. Subtracting 1 modifies them to 0, 4, 8, 2.
Composite Synthesis ▼
Aligning the new values positionally reconstructs the entire sequence as 8046824.
Frequency Audit ▼
Within the array 8046824, the digit '8' recurs twice and the digit '4' also recurs twice.
Conclusion ▼
Exactly two distinct numbers trigger multiple appearances.
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