## Quantitative Aptitude

### Permutation, Combination & Probability

Question
9 out of 20

There are seven candidate for 3 post in how many ways can the post be filled?

 A 210 B 120 C 73 D 37 E None of These

Ans. A

For first place there are 7 candidate while for second there are six candidate because one is selected in 1st post same for 3rd post rest are 5 candidate so total candidate be 7 x 6 x 5 = 210