Derangements MCQ

Test your knowledge with important Derangements MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Derangements MCQs at Bissoy

• Determine the average of all four digit numbers that can be made using all the digits 2, 3, 5, 7 and 11 exactly once?
  ক

  3993

  খ

  1555

  গ

  5486

  ঘ

  1347
• What is the sum of all 6 digit numbers which can be formed using the digits 2, 3, 5, 6 and 9 exactly once?
  ক

  986546600

  খ

  25611866

  গ

  433338798

  ঘ

  319999680
• A postman can put 12 letters into their respective envelopes such that exactly 5 will go into the right envelope. Find the number of ways of doing this work.
  ক

  2984300

  খ

  1610496

  গ

  5322167

  ঘ

  3768650
• There are 5 different-colored boxes in a room each with a distinct cover. Find out the number of ways so that these covers can be put on the boxes such that none of the boxes can have right covers on it? (Assume that all the covers must be on the boxes).
  ক

  208

  খ

  137

  গ

  239

  ঘ

  24
• Computational complexity of derangements is of __________
  ক

  NP-complete

  খ

  NP-hard

  গ

  NP

  ঘ

  P
• Determine the number of derangements of (2, 4, 6, 1, 3, 5) that end with integer 2, 4 and 6 in some order?
  ক

  128

  খ

  29

  গ

  54

  ঘ

  36