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UPSC Civil ServicesPrelims2023General Studies Paper II (CSAT)
Question
QQ8. What is the unit digit in the expansion of (57242)^(9×7×5×3×1) ?
Options
- A 2
- B 4
- C 6
- D 8
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Correct Answer
A 2
Model Answer
Answer: option A, as per UPSC's final answer key (Series A).