(9) लाल और (8) नीली गेंदों में से (6) गेंदें चुननी हैं जिनमें ठीक (3) लाल गेंदें हों। कितने तरीके हैं?

From (9) red and (8) blue balls (6) balls are to be selected with exactly (3) red balls. How many ways are there?

Explanation opens after your attempt
Correct Answer

B. (4704)

Step 1

Concept

Exactly (3) red and (3) blue balls are needed. The ways are \(\binom{9}{3}\binom{8}{3}=4704\).

Step 2

Why this answer is correct

The correct answer is B. (4704). Exactly (3) red and (3) blue balls are needed. The ways are \(\binom{9}{3}\binom{8}{3}=4704\).

Step 3

Exam Tip

ठीक (3) लाल और (3) नीली गेंदें चाहिए। तरीके \(\binom{9}{3}\binom{8}{3}=4704\) हैं।

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Mathematics Answer, Explanation and Revision Hints

(9) लाल और (8) नीली गेंदों में से (6) गेंदें चुननी हैं जिनमें ठीक (3) लाल गेंदें हों। कितने तरीके हैं? / From (9) red and (8) blue balls (6) balls are to be selected with exactly (3) red balls. How many ways are there?

Correct Answer: B. (4704). Explanation: ठीक (3) लाल और (3) नीली गेंदें चाहिए। तरीके \(\binom{9}{3}\binom{8}{3}=4704\) हैं। / Exactly (3) red and (3) blue balls are needed. The ways are \(\binom{9}{3}\binom{8}{3}=4704\).

Which concept should I revise for this Mathematics MCQ?

Exactly (3) red and (3) blue balls are needed. The ways are \(\binom{9}{3}\binom{8}{3}=4704\).

What exam hint can help solve this Mathematics question?

ठीक (3) लाल और (3) नीली गेंदें चाहिए। तरीके \(\binom{9}{3}\binom{8}{3}=4704\) हैं।