| 1 |
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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| 2 |
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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| 3 |
No. of arrangements of the letters of the word plane taking all letters at a time: |
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| 4 |
Number of ways of arranging 5 keys in a circular ring is: |
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| 5 |
No. of diagonals can be formed by joining the vertices of the polygon having 12 sides ? |
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| 6 |
How many different number can be formed by taking 4 out of the six digits 1, 2, 3, 4, 5, 6: |
- A. 360
- B. 120
- C. 366
- D. none of these
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| 7 |
Probability of an impossible event is: |
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| 8 |
<sup>n</sup>C<sub>4</sub> =<sup>n</sup>C<sub>8</sub>then n = : |
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| 9 |
No. of arrangements of the letters of the word PAKISTAN can be made, taken all together ? |
- A. 21160
- B. 20160
- C. 20170
- D. 20016
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| 10 |
No. of diagonals can be formed by joining the vertices of the polygon having 5 sides ? |
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