(3) हिंदी और (4) अंग्रेजी पुस्तकों में से कुल (2) पुस्तकें चुननी हैं जिनमें दोनों हिंदी हों। कितने तरीके हैं?
From (3) Hindi and (4) English books, (2) books are to be selected and both must be Hindi. How many ways are there?
Explanation opens after your attempt
A. (3)
Concept
Both books must be Hindi, so there are \(\binom{3}{2}=3\) ways. Read the condition and choose the correct group.
Why this answer is correct
The correct answer is A. (3). Both books must be Hindi, so there are \(\binom{3}{2}=3\) ways. Read the condition and choose the correct group.
Exam Tip
दोनों पुस्तकें हिंदी होनी हैं इसलिए \(\binom{3}{2}=3\) तरीके हैं। शर्त पढ़कर सही समूह चुनें।
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