CUET · MATHS · PYQ PAPER 2025

Two numbers are selected without replacement at random, one at a time from the first six positive integers. Let x denotes the larger of the two numbers. Match List-I with List-II
List-I List-II
(A) \(P(x=2)\) (I) \(\frac{4}{15}\)
(B) \(P(x=3)\) (II) \(\frac{1}{15}\)
(C) \(P(x=4)\) (III) \(\frac{2}{15}\)
(D) \(P(x=5)\) (IV) \(\frac{1}{5}\)
Choose the correct answer from the options given below:

A (А) - (II), (В) - (III), (C) - (IV), (D) - (I)
B (А) - (III), (В) - (IV), (C) - (I), (D) - (II)
C (A) - (IV), (B) - (I), (C) - (II), (D) - (III)
D (A) - (I), (B) - (II), (C) - (III), (D) - (IV)

Verified Solution

Answer & Solution

Correct Answer

(A) (А) - (II), (В) - (III), (C) - (IV), (D) - (I)

Step-by-step Solution

Detailed explanation

Total number of ways to select two distinct numbers from {1, 2, 3, 4, 5, 6} (unordered): \(N = \binom{6}{2} = 15\). (A) \(P(x=2)\): Favorable pairs {1, 2}. Count = 1. \(P(x=2) = \frac{1}{15}\) (II) (B) \(P(x=3)\): Favorable pairs {1, 3}, {2, 3}. Count = 2.…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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List-I	List-II
(A) \(P(x=2)\)	(I) \(\frac{4}{15}\)
(B) \(P(x=3)\)	(II) \(\frac{1}{15}\)
(C) \(P(x=4)\)	(III) \(\frac{2}{15}\)
(D) \(P(x=5)\)	(IV) \(\frac{1}{5}\)