When a Minister arrives to his cabin, he finds 12 peoples waiting to meet him. If he can meet only

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22 Feb 2021 Combination

When a Minister arrives to his cabin, he finds 12 peoples waiting to meet him.
If he can meet only one people at a time, find the number of ways, he can schedule his meeting with the person if 3 leave in disgust before minister gets around to meeting them.

OPtion

1) 79,133,600 ways
2) 79,500,600 ways
3) 79,833,600 ways
4) 75,833,600 ways
5) 80,800,600 ways
6) 79,833,500 ways
7) 74,425,600 ways
8) 78,533,400 ways
9) 76,333,666 ways
10) None of the above

Solution

There are total 12 peoples.
3 of them leave hence total remaining = 9
They can be meet in 12P9 ways.
12P9 = 79,833,600 ways

Correct Option: 3 Best Solution (3)