\(यदि (A={1,2,3,4,5}) पर संबंध (R={(a,b):a+b\) अभाज्य है}) हो तो कौन सा युग्म (R) में है?

\(If (A={1,2,3,4,5}) and (R={(a,b):a+b\) is prime}), which pair belongs to (R)?

Explanation opens after your attempt
Correct Answer

A. \((1,4)\)

Step 1

Concept

Since (1+4=5) is prime, \((1,4)\in R\). In such questions, first check the sum according to the condition.

Step 2

Why this answer is correct

The correct answer is A. \((1,4)\). Since (1+4=5) is prime, \((1,4)\in R\). In such questions, first check the sum according to the condition.

Step 3

Exam Tip

(1+4=5) अभाज्य है इसलिए \((1,4)\in R\) है। ऐसे प्रश्नों में पहले शर्त के अनुसार योग जांचें।

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Mathematics Answer, Explanation and Revision Hints

\(यदि (A={1,2,3,4,5}) पर संबंध (R={(a,b):a+b\) अभाज्य है}) हो तो कौन सा युग्म (R) में है? \(/ If (A={1,2,3,4,5}) and (R={(a,b):a+b\) is prime}), which pair belongs to (R)?

Correct Answer: A. \((1,4)\). Explanation: (1+4=5) अभाज्य है इसलिए \((1,4)\in R\) है। ऐसे प्रश्नों में पहले शर्त के अनुसार योग जांचें। / Since (1+4=5) is prime, \((1,4)\in R\). In such questions, first check the sum according to the condition.

Which concept should I revise for this Mathematics MCQ?

Since (1+4=5) is prime, \((1,4)\in R\). In such questions, first check the sum according to the condition.

What exam hint can help solve this Mathematics question?

(1+4=5) अभाज्य है इसलिए \((1,4)\in R\) है। ऐसे प्रश्नों में पहले शर्त के अनुसार योग जांचें।