Question

Credit cards a three-digit security code on the back of cards. What is the probability that a code starts with the number 7?

Answer 1

the probability is
`(1)/(9)` since the maximum value of digits allowed in the ones place is 9 (10 Counting 0, but it wont start with 0) and so since 7 is one out of nine the answer is truly
`(1)/(9)`

P.S. For decimal the answer is: 0.111111 and for Percentage it is 11.1111%