Question

Mayank is going on a holiday trip.he wants to pack 3 t-shirt from 5 t-shirt he has. in how many ways can he make hs choice

Answer 1

Answer: So, he has 10 ways to make his choice.

Explanation:

Since we have given that

Total number of t-shirt he has = 5

Number of t-shirt he wants to pack = 3

Number of ways he can make his choice is given by

$^5C_3\\\\=\frac{5!}{3!.2!}\\\\=\frac{5\times 4}{2\times 1}\\\\=10}$

We are using the combination method as we are required to find 'r' objects form 'n' number of items which states that

$^nC_r=\frac{n!}{r!.(n-r)!}$

So, he has 10 ways to make his choice.

Answer 2

Answer:

Step-by-step explanation:

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