(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
Correct Answer

A. (3)

Step 1

Concept

Both books must be Hindi, so there are \(\binom{3}{2}=3\) ways. Read the condition and choose the correct group.

Step 2

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.

Step 3

Exam Tip

दोनों पुस्तकें हिंदी होनी हैं इसलिए \(\binom{3}{2}=3\) तरीके हैं। शर्त पढ़कर सही समूह चुनें।

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Mathematics Answer, Explanation and Revision Hints

(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?

Correct Answer: A. (3). Explanation: दोनों पुस्तकें हिंदी होनी हैं इसलिए \(\binom{3}{2}=3\) तरीके हैं। शर्त पढ़कर सही समूह चुनें। / Both books must be Hindi, so there are \(\binom{3}{2}=3\) ways. Read the condition and choose the correct group.

Which concept should I revise for this Mathematics MCQ?

Both books must be Hindi, so there are \(\binom{3}{2}=3\) ways. Read the condition and choose the correct group.

What exam hint can help solve this Mathematics question?

दोनों पुस्तकें हिंदी होनी हैं इसलिए \(\binom{3}{2}=3\) तरीके हैं। शर्त पढ़कर सही समूह चुनें।