(4) उपन्यास, (3) कविता और (5) नाटक पुस्तकों में से (5) पुस्तकें चुनकर पंक्ति में सजानी हैं। चयन में ठीक (2) कविता पुस्तकें और कम से कम (1) उपन्यास हो। कुल कितनी व्यवस्थाएँ होंगी?

From (4) novels, (3) poetry books, and (5) drama books, (5) books are to be selected and arranged in a row. The selection must have exactly (2) poetry books and at least (1) novel. How many arrangements are possible?

Explanation opens after your attempt
Correct Answer

C. (26640)

Step 1

Concept

First choose exactly (2) poetry books, then choose the remaining (3) books from novels and dramas with at least (1) novel. After selection, arrange in (5!) ways.

Step 2

Why this answer is correct

The correct answer is C. (26640). First choose exactly (2) poetry books, then choose the remaining (3) books from novels and dramas with at least (1) novel. After selection, arrange in (5!) ways.

Step 3

Exam Tip

पहले ठीक (2) कविता पुस्तकें चुनें, फिर बाकी (3) पुस्तकें उपन्यास-नाटक से कम से कम (1) उपन्यास सहित चुनें। चयन के बाद (5!) क्रम लगाएँ।

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Mathematics Answer, Explanation and Revision Hints

(4) उपन्यास, (3) कविता और (5) नाटक पुस्तकों में से (5) पुस्तकें चुनकर पंक्ति में सजानी हैं। चयन में ठीक (2) कविता पुस्तकें और कम से कम (1) उपन्यास हो। कुल कितनी व्यवस्थाएँ होंगी? / From (4) novels, (3) poetry books, and (5) drama books, (5) books are to be selected and arranged in a row. The selection must have exactly (2) poetry books and at least (1) novel. How many arrangements are possible?

Correct Answer: C. (26640). Explanation: पहले ठीक (2) कविता पुस्तकें चुनें, फिर बाकी (3) पुस्तकें उपन्यास-नाटक से कम से कम (1) उपन्यास सहित चुनें। चयन के बाद (5!) क्रम लगाएँ। / First choose exactly (2) poetry books, then choose the remaining (3) books from novels and dramas with at least (1) novel. After selection, arrange in (5!) ways.

Which concept should I revise for this Mathematics MCQ?

First choose exactly (2) poetry books, then choose the remaining (3) books from novels and dramas with at least (1) novel. After selection, arrange in (5!) ways.

What exam hint can help solve this Mathematics question?

पहले ठीक (2) कविता पुस्तकें चुनें, फिर बाकी (3) पुस्तकें उपन्यास-नाटक से कम से कम (1) उपन्यास सहित चुनें। चयन के बाद (5!) क्रम लगाएँ।