| 1 |
The value of <sup>5</sup>C<sub>2</sub> is: |
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| 2 |
The number of ways in which fiver persons can sit at a round table is: |
- A. 4!
- B. 5!
- C.
- D. none of these
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| 3 |
<sup>n</sup>C<sub>4</sub> =<sup>n</sup>C<sub>8</sub>then n = : |
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| 4 |
In how many ways two places can be filled by n objects: |
- A. n(n-1)
- B. 2!
- C. n(n+1)
- D. None
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| 5 |
Numbers are formed by using all the digits 1, 2, 3, 4, 5, 6 on digit being repeated, then the numbers which are divisible by 5 are: |
- A. 110
- B. 120
- C. 122
- D. 124
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| 6 |
No. of arrangements of the letters of the word plane taking all letters at a time: |
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| 7 |
No. of triangles can be formed by joining the vertices of the polygon having 5 sides ? |
- A. 10
- B. 15
- C. 20
- D. none of these
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| 8 |
If S is a simple space and event E is (pic) then P(E) = |
- A. 0
- B. -1
- C. >1
- D. none
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| 9 |
A dice is rolled, the probability of getting a number which is even or greater than 4 is: |
- A.
- B.
- C.
- D. none of these
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| 10 |
For a positive integer n: |
- A. (n+1)! = (n+1)n!
- B. (n+1)! = (n+1)(n-1)!
- C. n! = n(n+1)!
- D. none of these
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