(5) पेन और (6) पेंसिलों में से (2) पेन और (1) पेंसिल कितने तरीकों से चुनी जा सकती हैं?

From (5) pens and (6) pencils, in how many ways can (2) pens and (1) pencil be selected?

Explanation opens after your attempt
Correct Answer

C. (60)

Step 1

Concept

The ways are \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\). Select from each group separately.

Step 2

Why this answer is correct

The correct answer is C. (60). The ways are \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\). Select from each group separately.

Step 3

Exam Tip

तरीके \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\) हैं। प्रत्येक समूह से चयन अलग-अलग करें।

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Mathematics Answer, Explanation and Revision Hints

(5) पेन और (6) पेंसिलों में से (2) पेन और (1) पेंसिल कितने तरीकों से चुनी जा सकती हैं? / From (5) pens and (6) pencils, in how many ways can (2) pens and (1) pencil be selected?

Correct Answer: C. (60). Explanation: तरीके \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\) हैं। प्रत्येक समूह से चयन अलग-अलग करें। / The ways are \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\). Select from each group separately.

Which concept should I revise for this Mathematics MCQ?

The ways are \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\). Select from each group separately.

What exam hint can help solve this Mathematics question?

तरीके \(\binom{5}{2}\binom{6}{1}=10\cdot6=60\) हैं। प्रत्येक समूह से चयन अलग-अलग करें।