In a certain state, license plates consist of three

Solution 8E

Step1 of 3:

We have license plates consist of 3 letters followed by 3 numbers.

We need to find,

a).We need to find How many different license plates can be made?

b).We need to find How many different license plates can be made in which no letter or number appears more than once?

c).We need to find A license plate is chosen at random. What is the probability that no letter or number appears more than once?

Step2 of 3:

a).

We know that the total number of letters in English = 26

The allowed digits are {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

That is n = 10.

license plates consist of 3 letters followed by 3 numbers.

Now,

The possible number of ways to made different license plates =