CUET · MATHS · PYQ PAPER 2025
If \(P, Q\) and \(R\) are matrices of order \(2 \times 3,3 \times 5\) and \(5 \times 3\) respectively. Then which of the following are valid?
(A) \(P Q R\)
(B) \(P R Q\)
(C) \(Q R\)
(D) \(R Q\)
(E) \(P R\)
Choose the correct answer from the options given below :
- A (A),(C),(D) only
- B (B),(C),(D) only
- C (A),(B),(C),(D) only
- D (A),(B),(D),(E) only
Answer & Solution
Correct Answer
(A) (A),(C),(D) only
Step-by-step Solution
Detailed explanation
Checking validity of (A) \(PQR\): \(P_{2 \times 3} Q_{3 \times 5} \rightarrow (PQ)_{2 \times 5}\) (Valid: \(3=3\)). \((PQ)_{2 \times 5} R_{5 \times 3} \rightarrow (PQR)_{2 \times 3}\) (Valid: \(5=5\)). (A) is valid. Checking validity of (B) \(PRQ\):…
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