| 1 |
No. of arrangements can be made of 4 letters a, b, c, d taken 2 at a time ? |
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| 2 |
If <sup>n</sup>P<sub>2</sub> = 30 then n = : |
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| 3 |
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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| 4 |
No. of arrangements of the letters of the word PAKPATTAN can be made, taken all together ? |
- A. 15130
- B. 15120
- C. 1512
- D. none of these
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| 5 |
If S is a sample space and event E is S then P(E) is: |
- A. 0
- B. 1
- C. >1
- D. none
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| 6 |
The probability that a number selected from the numbers 1, 2, 3, 4, 5, ......, 16 is a prime number is: |
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| 7 |
No. of arrangements of the letters of the word plane taking all letters at a time: |
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| 8 |
The value of <sup>5</sup>C<sub>2</sub> is: |
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| 9 |
No. of necklaces can be made from 7 beads of different colors ? |
- A. 360
- B. 120
- C. 60
- D. 70
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| 10 |
No. of diagonals can be formed by joining the vertices of the polygon having 12 sides ? |
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