Factorial, Permutation and Combination

• 210

• 140

• 520

• 410

Which of the following is the correct factorial notation?

• a!

• a*

• a^

• a%

• 5! + 1!

• 6!

• 3! + 3!

• 2 (3!)

Which of the following has different value from the rest?

• (2 + 3)!

• 5! x 0!

• 8! - 3!

• 5!

What is the value of 4! + 3!?

• 30

• 40

• 24

• 12

What is the value of 6! - 5!?

• 600

• 120

• 1

• 96

• 720

• 360

• 540

• 1440

• 110

• 520

• 360

• 440

Five books are to be arranged on a shelf, but there is space for only three books. How many different arrangements of three books among the five are possible?

• 60

• 56

• 120

• 760