(9) रंगों में से (2) रंगों का झंडा बनाना है लेकिन रंगों का स्थान तय नहीं है। कितने चयन हैं?

A flag is to be made by choosing (2) colors from (9) colors, but the positions of colors are not fixed. How many selections are there?

Explanation opens after your attempt
Correct Answer

B. (36)

Step 1

Concept

Positions are not fixed, so only colors are selected. The ways are \(\binom{9}{2}=36\).

Step 2

Why this answer is correct

The correct answer is B. (36). Positions are not fixed, so only colors are selected. The ways are \(\binom{9}{2}=36\).

Step 3

Exam Tip

स्थान तय नहीं है इसलिए केवल रंगों का चयन है। तरीके \(\binom{9}{2}=36\) हैं।

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Mathematics Answer, Explanation and Revision Hints

(9) रंगों में से (2) रंगों का झंडा बनाना है लेकिन रंगों का स्थान तय नहीं है। कितने चयन हैं? / A flag is to be made by choosing (2) colors from (9) colors, but the positions of colors are not fixed. How many selections are there?

Correct Answer: B. (36). Explanation: स्थान तय नहीं है इसलिए केवल रंगों का चयन है। तरीके \(\binom{9}{2}=36\) हैं। / Positions are not fixed, so only colors are selected. The ways are \(\binom{9}{2}=36\).

Which concept should I revise for this Mathematics MCQ?

Positions are not fixed, so only colors are selected. The ways are \(\binom{9}{2}=36\).

What exam hint can help solve this Mathematics question?

स्थान तय नहीं है इसलिए केवल रंगों का चयन है। तरीके \(\binom{9}{2}=36\) हैं।