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From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf so that the dictionary is always in the middle. The number of such arrangements is :
  • a)
    at least 1000
  • b)
    less than 500
  • c)
    at least 500 but less than 750
  • d)
    at least 750 but less than 1000
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
From 6 different novels and 3 different dictionaries, 4 novels and 1 d...
Let 
 be novels and 
 be dictionaries
The number of ways 

Here, 
 denotes the selection of 
 novels out of 
 denotes the selection of 
 dictionary out of 
 and 
 denotes the rearrangement of 
 novels as dictionary will always be in the middle.
 
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From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf so that the dictionary is always in the middle. The number of such arrangements is :a)at least 1000b)less than 500c)at least 500 but less than 750d)at least 750 but less than 1000Correct answer is option 'A'. Can you explain this answer?
Question Description
From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf so that the dictionary is always in the middle. The number of such arrangements is :a)at least 1000b)less than 500c)at least 500 but less than 750d)at least 750 but less than 1000Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf so that the dictionary is always in the middle. The number of such arrangements is :a)at least 1000b)less than 500c)at least 500 but less than 750d)at least 750 but less than 1000Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf so that the dictionary is always in the middle. The number of such arrangements is :a)at least 1000b)less than 500c)at least 500 but less than 750d)at least 750 but less than 1000Correct answer is option 'A'. Can you explain this answer?.
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