PERMUTATIONS, COMBINATIONS AND PROBABILITY MCQs Ch:07 Fsc First Year consist of 150+ Multiple Choice Questions. Prepare these mcqs for ECAT and examination. These mcqs are very helpful for preparing NTS and PPSC exams. The mcqs were uploaded on daily basis so keep visiting this website. ONCE the material is completely uploaded then Explanation of each mcqs and videos will be provided very soon.

Q.1 The factorial of a positive integer n is n! =

(a) n(n-1)(n-2)(n- 3)…3.2.1

(b) (n-1)(n-2)(n-3)…3.2.1

(c) (n+ 1)n(n- 1)(n-2)(n-3)…3.2.1

(d) (n- 2)(n-3)…3.2.1

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Q.2 The factorial of a positive integern is

(a) n! = n(n-1)!(n-2)!

(b) n!= n(n+2)!

(c) n! =n(n-2)!

(d) n! = n(n-1)!

(Gujranwala Board, 2007 )

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Q.3 If n is any positive integer, then

(a) (n+1)! = (n+ 1)n!

(b) (n+1)! = (n+ 1)(n-1)!

(c) n! = n(n-2)!

(d) n! = n(n+ 1)!

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Q.4 For a negative integer n, the factorial n!

(a) is unique

(b) is 0.

(c) does not exist

(d) is 1

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Q.5 0! =

(a) 0

(b) 1

(c) -i

(d) 2

(Lahore Board, 2007)

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