Classical

Permutations and Combinations Questions - Permutation and Combinations

1:  

Total number of words formed by 2 vowels and 3 consonants taken from 4 vowels and 5 consonants is equal to

 
A.

60

B.

120

C.

7200

D.

none of these

 
 

Option: C

Explanation :


2:  

The number of different permutations of the word BANANA is

A.

720

B.

60

C.

120

D.

360

 
 

Option: B

Explanation :


3:  

There are four bus lines between A and B; and three bus lines between Band C.

The number of way a person roundtrip by bus from A to C by way of B will be

A.

12

B.

48

C.

144

D.

264

 
 

Option: A

Explanation :

There are four ways to go from A to B and three ways to go from B to C,
Hence there are 4 x 3 = 12 ways to go from A to C by way of B


4:  

In how many ways can 5 red and 4 white balls be drawn from a bag containing 10 red and 8 white balls?

A.

8C5  x 10C4

B.

10C5  x  8C4

C.

18C9

D.

None of these

 
 

Option: B

Explanation :


5:  

The number of diagonals that can be drawn by joining the vertices of an octagon is

A.

28

B.

48

C.

20

D.

none of these

 
 

Option: C

Explanation :




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  • These permutation and combination Multiple Choice Questions Answers can be used for the preparation of UGC NET Computer Science Exam.
  • Permutation and combination MCQ  can also be used for scroing in GATE Aptitude Exams.
  • Permutation and combination MCQ Questions Answers can be used for the preparation of PSU Exams.
  • Combination Multiple Choice Questions Answers can be used  for gaining good credit score in Computer Engineering exams.
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