Question

2 letters followed by 3 digits...

Find how many license plates can be made if

a. letters and numbers can be repeated
b. they cannot be repeated

Answer 1

Permutation I believe this is....

Answer 2

So if it can be repeated, would that be (26^2)(9^3)

Answer 3

@Nnesha

Answer 4

@rational

Answer 5

Actually it is (26^2)(10^3) as there are 10 digits in decimal, i.e. 0, 1, 2, 3, ..., 8, 9.

Answer 6

Okay, so the one without repetitions would be 10p3 times 26p2?

Answer 7

@thomas5267

Answer 8

That sounds right to me.

Answer 9

so i can use this formula if I didn't have a calculator right?

Answer 10

Yes it would be possible.