When Dr. Ram arrives in his dispensary, he finds 12 patients waiting to see him. If he can see only one patients at a time,find the number of ways, he can schedule his patients if 3 leave in disgust before Dr. Ram gets around to seeing them.
Correct Answer: 79833600
Explanation:
There are 12 - 3 = 9 patients.They can be seen in
= 79833600 ways
