Question

Find the total number of selection of 8 objects out of 10 objects.
45
50
O O
55​

Answer 1

Answer:

50 is the correct answer please mark me as your brain list and follow me .

Answer 2

A. There are total number of 45 ways in which 8 objects can be selected out of 10 objects.

Given,

Total objects = 10

Objects to be selected = 8

To find,

number of ways

Concept to be used,

Combination = $\frac{n!}{(n-r)!r!}$

A mathematical way which is used to determine the total number of possible ways in any item collections in which order of the objects doesn't matter.

$\frac{n!}{(n-r)!r!}$

$\frac{10!}{(10-8)!8!} \\\\\frac{10!}{8!2!}\\ \\\frac{(9)(10)}{2}\\ \\(9)(5)\\\\45$

Therefore, there are total number of 45 ways in which 8 objects can be selected out of 10 objects.