Civil Services Examination · प्रश्न 69
A question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question: Let P, Q, R, S be distinct non-zero digits. If PP × PQ = RRSS, where P ≤ 3 and Q ≤ 4, then what is Q equal to? Statement I: R = 1. Statement II: S = 2. Which one of the following is correct in respect of the above Question and the Statements?
उत्तर देखें और व्याख्या
उत्तर: (D) The Question can be answered even without using any of the Statements.
व्याख्या
PP × PQ must be 4 digits, so P = 3: 33 × (30 + Q). Only Q = 4 gives the RRSS form (33 × 34 = 1122). The answer needs neither statement. (Answer as per the official UPSC answer key.)