यदि \(A=\{1,2,3,4,5,6\}\), तो ठीक दो विषम सदस्यों वाले उपसमुच्चयों की संख्या कितनी है?
If \(A=\{1,2,3,4,5,6\}\), how many subsets have exactly two odd elements?
Explanation opens after your attempt
Correct Answer
D. (24)
Concept
Choose two from the three odd numbers, and the three even numbers are optional. The count is \(\binom{3}{2}\times2^3=24\).
Why this answer is correct
The correct answer is D. (24). Choose two from the three odd numbers, and the three even numbers are optional. The count is \(\binom{3}{2}\times2^3=24\).
Exam Tip
तीन विषम संख्याओं में से दो चुनें और तीन सम संख्याएँ वैकल्पिक हैं। संख्या \(\binom{3}{2}\times2^3=24\) है।
Login to save your score, XP, coins and progress.