(8) लड़कों और (6) लड़कियों में से (5) विद्यार्थियों को चुनना है जिनमें ठीक (2) लड़कियां हों। कितने तरीके हैं?

From (8) boys and (6) girls (5) students are to be selected with exactly (2) girls. How many ways are there?

Explanation opens after your attempt
Correct Answer

C. (840)

Step 1

Concept

Exactly (2) girls and (3) boys are needed. The ways are \(\binom{6}{2}\binom{8}{3}=840\).

Step 2

Why this answer is correct

The correct answer is C. (840). Exactly (2) girls and (3) boys are needed. The ways are \(\binom{6}{2}\binom{8}{3}=840\).

Step 3

Exam Tip

ठीक (2) लड़कियां और (3) लड़के चाहिए। तरीके \(\binom{6}{2}\binom{8}{3}=840\) हैं।

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Mathematics Answer, Explanation and Revision Hints

(8) लड़कों और (6) लड़कियों में से (5) विद्यार्थियों को चुनना है जिनमें ठीक (2) लड़कियां हों। कितने तरीके हैं? / From (8) boys and (6) girls (5) students are to be selected with exactly (2) girls. How many ways are there?

Correct Answer: C. (840). Explanation: ठीक (2) लड़कियां और (3) लड़के चाहिए। तरीके \(\binom{6}{2}\binom{8}{3}=840\) हैं। / Exactly (2) girls and (3) boys are needed. The ways are \(\binom{6}{2}\binom{8}{3}=840\).

Which concept should I revise for this Mathematics MCQ?

Exactly (2) girls and (3) boys are needed. The ways are \(\binom{6}{2}\binom{8}{3}=840\).

What exam hint can help solve this Mathematics question?

ठीक (2) लड़कियां और (3) लड़के चाहिए। तरीके \(\binom{6}{2}\binom{8}{3}=840\) हैं।