Adriana will be examinated in $5$ subjects, one at each day.She has $5$ dresses in different colors: red-blue-green-white-yellow.
On Monday she does not want to wear the blue or green one.
On Tuesday, she does not wear the red or green one.
On Wednesday,she does not wear the blue, white or yellow one.
On Friday ,she does not wear the white one.
With how many different ways can Adriana be dressed,if she does not want to wear the same dress more than once?
Can you tell me how I could solve the above exercise?
EDIT: I tried to solve it using a diagram.
So,there are $18$ ways that she can be dressed..Could you tell me if it is right?