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