Engineering Board Exam Reviewer · Permutations · easy

In how many ways can the letters of the word "NUMBER" be arranged?

  1. 720
  2. 360
  3. 120
  4. 240

Answer

A. 720

Solution

All 6 letters are distinct: 6!=720.

More Permutations questions

  1. In how many distinct ways can the letters of the word "STATISTICS" be arranged?
  2. How many ways can 4 men and 3 women be seated in a row if the 3 women must sit together?
  3. In how many ways can 5 people be arranged in a row if two particular people must NOT sit next to each other?
  4. How many distinguishable permutations are there of the letters in "MISSISSIPPI"?
  5. From a group of 8 people, in how many ways can a chairperson, secretary, and treasurer (distinct roles) be selected?
  6. In how many ways can 6 different books be arranged on a shelf?
  7. How many ways can a president, vice president, and secretary be chosen from a club of 10 members (distinct roles)?

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