Respuesta :
You have five fruits and you want to choose three of
them to combine into a fruit smoothie. In how many ways can three fruits be
selected from the five fruits that you have?
B.10 is the answer
I know it's a multiple choice and all you really need it the letter that is the answer, but let me know if you want an explanation
B.10 is the answer
I know it's a multiple choice and all you really need it the letter that is the answer, but let me know if you want an explanation
Answer: The correct option is (B). 10.
Step-by-step explanation: Given that there are five fruits and we want to choose three of them to combine into a fruit smoothie.
We are to find the number of ways in which three fruits be selected from the five fruits.
We will be using the following combination formula for n elements choosing r (r is less than or equal to n) at a time:
[tex]^nC_r=\dfrac{n!}{r!(n-r)!}.[/tex]
Here, n = 5 and r = 3.
Therefore, the required number of ways is given by
[tex]^5C_3\\\\\\\dfrac{5!}{3!(5-3)!}\\\\\\=\dfrac{5!}{3!2!}\\\\\\=\dfrac{5\times 4\times 3!}{3!\times 2\times 1}\\\\\\=5\times 2\\\\=10.[/tex]
Thus, the required number of ways is 10.
Option (B) is CORRECT.