MBA Quantitative Aptitude Questions & Answers – Permutation and Combination Set-I

2. Number of positive integral solutions of pqr = 30 is

a) 9

b) 27

c) 81

d) 243

MBA Quantitative Aptitude Basic Concepts – Permutations and Combinations

3. The letters of the word CEBADA are written in all possible orders and these words are written out as in a dictionary. Then the rank of the word CEBADA is

a) 236

b) 245

c) 307

d) 315

5. The least positive integral value of k which satisfies the inequality ¹⁰C_k–1> 2.¹⁰C_k is:

a) 7   

b) 8   

c) 9   

d) 10

8. If p denotes the number of permutations of n + 2 things taken all at a time, q the number of permutations of n things taken 11 at a time and r the number of permutations of n – 11 things taken all at a time such that p = 182 qr, then the value of n is

a) 15

b) 12

c) 10

d) 18

9. The exponent of 5 in 100C50 is

a) 0

b) 1

c) 2

d) 3

10. The number of words can be formed with the letters of the word PUTALAPITRA without changing the relative positions of vowels and consonants is:

a) 3600

b) 1800

c) 2000

d) 1200

Answers:

EXPLANATION

In this section we will explain the rationale for choosing the answer pertaining to every question. After practicing these MCQ(s), you would be able to understand the concepts of Permutation and Combination

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