Let Us Practice!

In how many ways can 6 different electric bulbs be arranged in series?

• 6

• 21

• 120

• 720

Nine kinds of cakes are arranged around a circular table. Find number of possible arrangements of the cakes.

• 1

• 8

• 5040

• 40320

In how many ways can 8 students be seated around a circular lounge if two of them insist on sitting beside each other?

• 8

• 1440

• 5040

• 40320

How many five-digit numbers can be formed from the numbers 1, 2, 3, 4, 5, and 6 if repetition of digits is not allowed?

• 15

• 24

• 360

• 720

What is P (8,3)?

• 40 320

• 336

• 56

• 24