Permutations

Front

What is a permutation?

Back

A permutation is an arrangement of objects in a specific order. The order matters in permutations.

Front

How do you calculate the number of permutations of n objects?

Back

The number of permutations of n objects is calculated using n! (n factorial), which is the product of all positive integers up to n.

Front

What is the value of 6! ?

Back

720

Front

How many ways can you arrange the letters in the word 'team'?

Back

24

Front

What is a combination?

Back

A combination is a selection of items from a larger set where the order does not matter.

Front

How do you calculate the number of combinations of n objects taken r at a time?

Back

The number of combinations is calculated using the formula: C(n, r) = n! / (r! * (n - r)!).

Front

What is the value of 4! ?

Back

24

Front

If you have 5 different books, how many ways can you arrange them on a shelf?

Back

120

Front

What is the difference between permutations and combinations?

Back

Permutations consider the order of selection, while combinations do not.

Front

How many ways can you choose 2 toppings from a list of 10?

Back

45 (using combinations: C(10, 2) = 10! / (2! * 8!) = 45).