← All previous year questions
UPSC Civil ServicesPrelims2023General Studies Paper II (CSAT)
Question
QQ14. Three of the five positive integers p, q, r, s, t are even and two of them are odd (not necessarily in order). Consider the following : 1. p + q + r – s – t is definitely even. 2. 2p + q + 2r – 2s + t is definitely odd. Which of the above statements is/are correct ?
Options
- A 1 only
- B 2 only
- C Both 1 and 2
- D Neither 1 nor 2
Show AnswerHide Answer
Correct Answer
A 1 only
Model Answer
Answer: option A, as per UPSC's final answer key (Series A).