Practice Questions on Permutation-Combination
Aptitude 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.

$7$

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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

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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.

$29,295$

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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

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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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