# Permutations and Combinations MCQ Questions for Class 11 Math’s Chapter 7 with Answers

(i) 1296
(ii) 671
(iii) 625
(iv) 585

(ii) 671

(i) x = y
(ii) y = 12x
(iii) x = 10y
(iv) x = 12y

(iv) x = 12y

(i) 604800
(ii) 17280
(iii) 120960
(iv) 518400

(i) 604800

(i) 250
(ii) 350
(iii) 450
(iv) 550

(iii) 450

## Q5. In a test there were n questions. In the test 2n – i students gave worng answers to i questtions i = 1, 2, 3, ……..n. If the total number of wrong anwers given is 2047 then n is

(i) 12
(ii) 11
(iii) 10
(iv) None of these

(iii) 10

(i) 1440
(ii) 8P6
(iii) 720
(iv) 722

(iii) 720

(i) 120
(ii) 240
(iii) 360
(iv) 480

(iii) 360

(i) 4
(ii) 8
(iii) 12
(iv) 16

(iv) 16

(i) 99!
(ii) 9!
(iii) 8 × 9!
(iv) 9 × 9!

(iv) 9 × 9!

## Q10. How many 3-letter words with or without meaning, can be formed out of the letters of the word, LOGARITHMS, if repetition of letters is not allowed

(i) 720
(ii) 420
(iii) none of these
(iv) 5040

(i) 720

(i) 30
(ii) 60
(iii) 90
(iv) 120

(iii) 90

(i) n
(ii) 2n
(iii) n!
(iv) 2n!

(iii) n!

(i) 152100
(ii) 1512
(iii) 15120
(iv) 151200

(iv) 151200

(i) 100 ways
(ii) 20 ways
(iii) 512 ways
(iv) 1024 ways

(iv) 1024 ways

## Q15. In how many ways in which 8 students can be sated in a circle is

(i) 40302
(ii) 40320
(iii) 5040
(iv) 50040

(iii) 5040

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