| 1 |
No. of arrangements of the letters of the word plane taking all letters at a time: |
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| 2 |
A key ring is an example of: |
- A. permutation
- B. circulation permutation
- C. combination
- D. none
|
| 3 |
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
|
| 4 |
Number of ways of arranging 5 keys in a circular ring is: |
|
| 5 |
|
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| 6 |
A die is rolled. The probability that the dots on the top are greater than 4 is: |
|
| 7 |
n! stands for: |
- A. product of first natural numbers
- B. sum of n natural numbers
- C. product of n integers
- D. none of these
|
| 8 |
No. of selection of n different things out of n is: |
|
| 9 |
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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| 10 |
In how many ways two places can be filled by n objects: |
- A. n(n-1)
- B. 2!
- C. n(n+1)
- D. None
|
