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Reasoning
Alphanumeric Series
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NTPC Graduate Tier 1 2025 Shift-1 📅 09 Jun, 2025

If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 8271634, how many digits will appear more than once in the new number thus formed?

A
Two
B
None
C
One
D
Three
Result Summary
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NTPC Graduate Tier 1
2025 • 09 Jun, 2025 • Shift-1
If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 8271634, how many digits will appear more than once in the new number thus formed?
Correct Answer
Two
Digit Modification Logic: The base sequence is 8271634. We apply the specific modifiers: Even numbers lose 2, while Odd numbers gain 1.Execution: 8 (even, -2) =......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Reasoning
Chapter -
Ref. Topic Alphanumeric Series
Pg. No -
💡 Analysis & Explanation
Digit Modification Logic ▼
The base sequence is 8271634. We apply the specific modifiers: Even numbers lose 2, while Odd numbers gain 1.
Execution ▼
8 (even, -2) = 6; 2 (even, -2) = 0; 7 (odd, +1) = 8; 1 (odd, +1) = 2; 6 (even, -2) = 4; 3 (odd, +1) = 4; 4 (even, -2) = 2.
Frequency Analysis ▼
The resulting transformed sequence is 6082442. Looking at the occurrences, the digit '2' appears twice, and the digit '4' appears twice. No other digits repeat.
Conclusion ▼
Exactly two distinct digits appear more than once.
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