Answer: 8.72*10^10
Explanation:
Total number of balls = 14
Now,
Make 14 lines.
_ _ _ _ _ _ _ _ _ _ _ _ _ _
In the first position, you can choose any ball from 14 balls. So,
14 _ _ _ _ _ _ _ _ _ _ _ _ _
In the second position, you can choose any ball from 13 balls. This is because you've already kept one ball in first position. So,
14 13 _ _ _ _ _ _ _ _ _ _ _ _
In the third position, you can choose any ball from 12 balls. So,
14 13 12 _ _ _ _ _ _ _ _ _ _ _
Do this until you fill all the place.
14 13 12 11 10 9 8 7 6 5 4 3 2 1
Multiply all of this.
14 *13 *12 *11 *10 *9 *8 *7 *6 *5 *4 *3 *2 *1
= 8.72*10^10