| 1 |
Probability of an impossible event is: |
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| 2 |
If <sup>n</sup>P<sub>2</sub> = 30 then n = : |
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| 3 |
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3 ? |
- A.
- B.
- C.
- D. none of these
|
| 4 |
Number of digits multiple of 5 made from the digits 2, 3, 5, 7, 9 is: |
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| 5 |
The factorial of positive integer is: |
- A. rational no.
- B. positive integer
- C. real no.
- D. none
|
| 6 |
|
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| 7 |
No. of arrangements of the letters of the word PAKISTAN can be made, taken all together ? |
- A. 21160
- B. 20160
- C. 20170
- D. 20016
|
| 8 |
The value of <sup>5</sup>C<sub>2</sub> is: |
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| 9 |
If S is a sample space and event E is S then P(E) is: |
- A. 0
- B. 1
- C. >1
- D. none
|
| 10 |
n! stands for: |
- A. product of first natural numbers
- B. sum of n natural numbers
- C. product of n integers
- D. none of these
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