(5) लाल गेंदों और (3) काली गेंदों में से (2) लाल गेंदें चुनने के कितने तरीके हैं?
From (5) red balls and (3) black balls, how many ways are there to choose (2) red balls?
Explanation opens after your attempt
B. (10)
Concept
Only red balls are being selected. Hence \(\binom{5}{2}=10\) is correct.
Why this answer is correct
The correct answer is B. (10). Only red balls are being selected. Hence \(\binom{5}{2}=10\) is correct.
Exam Tip
केवल लाल गेंदों में से चयन है। इसलिए \(\binom{5}{2}=10\) सही है।
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