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. Then the number of such arrangement is:

Question:

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 Then the number of such arrangement is:

  1. at least 500 but less than 750

  2. at least 750 but less than 1000

  3. at least 1000

  4. less than 500

Correct Option: 3

JEE Main Previous Year 1 Question of JEE Main from Mathematics Permutations And Combinations chapter.
JEE Main Previous Year 2009

Solution:

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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 :

Question:

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 :

  1.  less than 500

     

     

     

     

     

  2.  at least 500 but less than 750

  3. at least 750 but less than 1000

  4. at least 1000

Correct Option: 4

JEE Main Previous Year 1 Question of JEE Main from Mathematics Permutations And Combinations chapter.
JEE Main Previous Year 2018

Solution:

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