Introduction to Permutation

In how many ways can 10 people line up for a bus ticket?

• 3 628 800

• 362 880

• 181 440

• 1

How many permutations can be formed from the letters of the word EDISON using all letters?

• 720

• 640

• 320

• 120

How many 7-digit phone numbers can be found with the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, assuming that no digits is used more than once and the first digit is not 0 or 1?

• 840

• 3 840

• 83 840

• 483 840

If 4 persons enter a bus on which there are 10 vacant seats. How many ways are there for the four be seated?

• 5 040

• 504

• 50

• 4

In how many ways can four girls be seated in a row of four chairs if Pauline insists on sitting in the first chair?

• 2

• 4

• 6

• 8