MCQs Questions for Class 11 Maths Chapter 7 Permutations and Combinations

# MCQs Questions for Class 11 Maths Chapter 7 Permutations and Combinations

## MCQs Questions for Class 11 Maths Chapter 7 Permutations and Combinations

In this 21st century, Multiple Choice Questions (MCQs) play a vital role to prepare for a competitive examination. CBSE board has also brought a major change in its board exam patterns. In most of the competitive examinations, only MCQ Questions are asked.

In future, if you want to prepare for competitive examination, then you should focus on the MCQs questions. Thus, let’s solve these MCQs questions to make our foundation strong.

In this post, you will find 16 MCQs questions for class 11 maths chapter 7 permutations and combinations.

## MCQs Questions for Class 11 Maths Chapter 7 Permutations and Combinations

1. A boy has 2 pencil and 3 erasers. In how many ways can he choose a pencil and an eraser?
(a) 5
(b) 6
(c) 8
(d) 9

2. The number of combination of n distinct objects, taken r at a time, is given by
(a) n/2Cr
(b) n/2Cr/2
(c) nCr/2
(d) nCr

3. If there are 4 paths to travel from Delhi to Lucknow, then in how many ways a person can travel from Delhi to Lucknow and came back to Delhi?
(a) 4
(b) 8
(c) 12
(d) 16

4. Four dice are rolled. The number of possible outcomes in which at least one dice show 2 is
(a) 1296
(b) 671
(c) 625
(d) 585

5. Find the number of 5 letter words which can be formed from the word PULSE without repetition.
(a) 20
(b) 60
(c) 120
(d) 240

6. If repetition of the digits is allowed, then the number of even natural numbers having three digits is
(a) 250
(b) 350
(c) 450
(d) 550

7. How many 5-digit numbers are possible without repetition of digits?
(a) 27216
(b) 50400
(c) 100000
(d) 90000

8. The number of ways in which 8 distinct toys can be distributed among 5 children is
(a) 58
(b) 85
(c) 8P5
(d) 5P5

9. A passcode is made of 5 digits. How many maximum numbers of ways incorrect passcode is entered?
(a) 27215
(b) 50399
(c) 99999
(d) 89999

10. The value of P(n, n – 1) is
(a) n
(b) 2n
(c) n!
(d) 2n!

11.  nPr = nCr × ______________
(a) r!
(b) 1/r!
(c) n!
(d) 1/n!

12. Out of 5 apples, 10 mangoes and 13 oranges, any 15 fruits are to be distributed among 2 persons. Then the total number of ways of distribution is
(a) 1800
(b) 1080
(c) 1008
(d) 8001

13. If nC2 = nC3, then the value of n is
(a) 2
(b) 3
(c) 5
(d) 6

14. The number of ways in which the letters of the word ASSASSINATION be arranged so that all the S are together is
(a) 152100
(b) 1512
(c) 15120
(d) 151200

15.  If 14Cr = 14 and 15Cr = 15, then find the value of 14Cr-1.
(a) 1
(b) 14
(c) 15
(d) 3