(11) अभ्यर्थियों में से अध्यक्ष और सचिव चुनने के तरीके कितने हैं?

In how many ways can a president and secretary be chosen from (11) candidates?

Explanation opens after your attempt
Correct Answer

C. (110)

Step 1

Concept

The two posts are distinct, so \({}^{11}P_{2}=11\times10=110\). Use permutation for distinct posts.

Step 2

Why this answer is correct

The correct answer is C. (110). The two posts are distinct, so \({}^{11}P_{2}=11\times10=110\). Use permutation for distinct posts.

Step 3

Exam Tip

दो पद अलग हैं इसलिए \({}^{11}P_{2}=11\times10=110\)। अलग पदों के लिए क्रमचय लगाएं।

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Mathematics Answer, Explanation and Revision Hints

(11) अभ्यर्थियों में से अध्यक्ष और सचिव चुनने के तरीके कितने हैं? / In how many ways can a president and secretary be chosen from (11) candidates?

Correct Answer: C. (110). Explanation: दो पद अलग हैं इसलिए \({}^{11}P_{2}=11\times10=110\)। अलग पदों के लिए क्रमचय लगाएं। / The two posts are distinct, so \({}^{11}P_{2}=11\times10=110\). Use permutation for distinct posts.

Which concept should I revise for this Mathematics MCQ?

The two posts are distinct, so \({}^{11}P_{2}=11\times10=110\). Use permutation for distinct posts.

What exam hint can help solve this Mathematics question?

दो पद अलग हैं इसलिए \({}^{11}P_{2}=11\times10=110\)। अलग पदों के लिए क्रमचय लगाएं।