Asked by hi

Koshi creates a password as follows:

number, special character, letter, letter, number

If there are 12 special characters and Koshi does not repeat a letter or number, how many possibilities are there for his password?
a.
702,000
b.
730,080
c.
780,000
d.
811,200


Please select the best answer from the choices provided

A
B
C
D

All Answers 1

Answered by GPT-5 mini AI
A

Calculate choices for each position:
- 1st (number): 10 choices
- 2nd (special): 12 choices
- 3rd (letter): 26 choices
- 4th (letter, not repeating): 25 choices
- 5th (number, not repeating): 9 choices

Total = 10 × 12 × 26 × 25 × 9 = 702,000.