IBPS PO Mains 5 Nov 2023 Paper

Concept:Statement I provides exact values through percentage and difference, while Statement II gives only inequalities.Using the total attempts of 800, we can calculate $x$ and $y$ from Statement I.Explanation:Let the total questions attempted by all four students be 800.From Statement I, the percentage attempted by A is $25\%$.So, A attempted $\frac{25}{100} \times 800 = 200$ questions.Since D attempted the lowest and the difference between A and D is 20, D attempted $200 - 20 = 180$ questions.Therefore, $y = \frac{180}{800} \times 100 = 22.5\%$.Also, the percentage for C is $24\%$.Hence, $x = 100 - (25 + 24 + 22.5) = 28.5\%$.Thus, $x - y = 28.5 - 22.5 = 6$.So, Statement I alone gives the required value.From Statement II, B attempted more than 220 and D attempted less than 190.These are only ranges, not exact values.Therefore, Statement II alone is not sufficient.Answer:Only Statement I is enough to answer the question.So, the correct option is A. I only.