Question

a product's serial code consists of three digits followed by one letter. Each digit can be from 0-9 and only letters B, D, P, S, T, and U are allowed. How many different serial codes are possible?

Answer 1

Repetition allowed?

Answer 2

i dont know

Answer 3

I would assume yes.

Answer 4

021 counts as three digits?

Answer 5

yes

Answer 6

then \(3^3 \times 6 \)

Answer 7

I vote for
\[ 6\cdot 10^3 \]