Tanner makes a smoothie for breakfast every morning. Today, he wants to use apple, orange, peach, and grapefruit. In how many different orders can he add these fruits to his blender?
Question
Tanner makes a smoothie for breakfast every morning. Today, he wants to use apple, orange, peach, and grapefruit. In how many different orders can he add these fruits to his blender?
Solution
Tanner has four different fruits that he can add to his blender: apple, orange, peach, and grapefruit. The order in which he adds these fruits matters, so we are dealing with a permutation problem.
The formula for permutations is nPr = n! / (n - r)!, where n is the total number of items, and r is the number of items to choose.
In this case, n = 4 (the total number of fruits) and r = 4 (the number of fruits he is choosing to add to the blender), so the formula becomes 4P4 = 4! / (4 - 4)!
4! (4 factorial) means 432*1 = 24.
(4 - 4)! is 0!, and the value of 0! is defined as 1.
So, 4P4 = 24 / 1 = 24.
Therefore, Tanner can add the four fruits to his blender in 24 different orders.
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