A password contains 1 integer, 1 letter, and 1 symbol. If there are 5 integers, 3 letters, and 2 symbols, how many passwords are possible?
- 170
- 180
- 190
- None of these
Explanation
The password must contain:
- 1 integer: 5 choices
- 1 letter: 3 choices
- 1 symbol: 2 choices
First select one from each category:
Now, these 3 selected characters can be arranged in different orders:
Therefore:
Related MCQs
- 170
- 180
- 190
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 1/2
- 1/3
- 1
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 1/2
- 2/3
- 3/4
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 0.125
- 0.12
- 0.1
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 9
- 8
- 7
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
