A tourist in France wants to visit 5 different cities. If the route is randomly selected, what is the probability that she will visit the cities in alphabetical order?

Question

Answer choice: a)120 b)1/5 c)1/120 d)1/25

Answer 1

So you have 5 possibilities.

The possibility of the first city being letter A is 1 out of 5.

The possibility of the second city being letter B is 1 out of 4.

The possibility of the third city being letter C is 1 out of 3...etc

Thus, we have:

1/5 x 1/4 x 1/3 x 1/2 = 1/120

Easy stuff.