# Practice Questions on Permutation-CombinationAptitude Questions and Answers

## Easy Permutation-Combination Question - 21

 Q21. There are $7$ non-collinear points. How many triangles can be drawn by joining these points?
 A. $35$ B. $10$ C. $8$ D. $7$

## Easy Permutation-Combination Question - 22

 Q22. From $6$ men and $4$ ladies, a committee of $5$ is to be formed. In how many ways can this be done, if the committee is to include at least one lady?
 A. 246 B. 340 C. 290 D. 315

## Easy Permutation-Combination Question - 23

 Q23. A question paper consists of three sections $4,5$ and $6$ questions respectively. Attempting one question from each section is compulsory but a candidate need not attempt all the questions. In how many ways can a candidate attempt the questions?
 A. $209$ B. $(4!-1)(5!-1)(6!-1)$ C. $119$ D. $29,295$

## Easy Permutation-Combination Question - 24

 Q24. In how many ways a President, VP and Waterboy can be selected from a group of 10 people.
 A. ${^{10}C_3}$ B. ${^{10}P_3}$ C. 240 D. 360

## Easy Permutation-Combination Question - 25

 Q25. In a hockey championship, there are $153$ matches played. Every two team played one match with each other. The number of teams participating in the championship is:
 A. $18$ B. $19$ C. $17$ D. $16$
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