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UPSC Civil ServicesPrelims2023General Studies Paper II (CSAT)
Question
QQ19. How many distinct 8-digit numbers can be formed by rearranging the digits of the number 11223344 such that odd digits occupy odd positions and even digits occupy even positions ?
Options
- A 12
- B 18
- C 36
- D 72
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Correct Answer
C 36
Model Answer
Answer: option C, as per UPSC's final answer key (Series A).