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UPSC Civil ServicesPrelims2025General Studies Paper II (CSAT)
Question
QQ7. How many possible values of (p + q + r) are there satisfying 1/p + 1/q + 1/r = 1, where p, q and r are natural numbers (not necessarily distinct) ?
Options
- A None
- B One
- C Three
- D More than three
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Correct Answer
C Three
Model Answer
Answer: option C, as per UPSC's final answer key (Series A).