← All previous year questions
UPSC Civil ServicesPrelims2024General Studies Paper II (CSAT)
Question
QQ20. Consider the following statements in respect of the sum S = x + y + z, where x, y and z are distinct prime numbers each less than 10 : 1. The unit digit of S can be 0. 2. The unit digit of S can be 9. 3. The unit digit of S can be 5. Which of the statements given above are correct?
Options
- A 1 and 2 only
- B 2 and 3 only
- C 1 and 3 only
- D 1, 2 and 3
Show AnswerHide Answer
Correct Answer
C 1 and 3 only
Model Answer
Answer: option C, as per UPSC's final answer key (Series A).