Question

Pls help!

Answer 1

License plates consist of 4 letters and 2 numbers.


How many license plates can be created if there are no other restrictions?





What if only letters cannot be repeated?





What if only digits cannot be repeated?

Answer 2

By default there are 26 letters and 10 numbers available

How many license plates can be created if there are no other restrictions? With 4 letters, you have 26 * 26 * 26 * 26 possible combinations (26 multiplied to itself 4 times). Same logic with 2 numbers (10*10). To get the total number of combinations, multiply everything together (26*26*26*26)(10*10)

Answer 3

For the second question, if letters cannot be repeated, then you have 26 possibilities for the first letter. You cannot repeat, so you only have 25 possibilities for the second letter, 24 for the third, 23 for the fourth. The numbers remain the same (10*10). Once again multiply everything together.

I’ll let you try the last one on your own using the same logic.