Permutations And Combinations Question 236

Question: If the best and the worst paper never appear together, then six examination papers can be arranged in how many ways

Options:

A) 120

B) 480

C) 240

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

  • If the best and the worst appear always together, the number of ways $ 5\ !\ \times 2 $ . Therefore required number of ways $ \ 6\ !\ -5\ !\ \times 2=480 $ .

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