Question

There are 12 balls numbered from 1 to 12 The number of ways in which they can be used to fill 8 places in a row is:

Hint:

### In the question we not only have to choose 8 balls from the 12 balls which are numbered but also we have to fill them in 8 places, So, we have to use the formula .

## The correct answer is:

### As we have to fill 8 places from 12 balls numbered 1 to 12.

So, the number of ways =

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