Question

Vinay made a Password that consists of 3 digits. None of the digits are the same. How many possible passwords did Vinay choose from?

Answer 1

10*9*8 = 720

Answer 2

sense the digits can not be repeated (and there are 3 digits in the password) it will be 10 then 9 then 8 then multiply all of them together.
10*9*8=720