Let x = number of shirts.
Let y = number of shorts.
The ratio of shirts to shorts is 4:1, therefore
x/y = 4 (1)
Therefore
y/x = 1/4 (2)
The total number of clothing is (x + y).
A.
The ratio of shirts to the total number of clothing is

Answer: 4/5
B.
The ratio of shorts to the total number of clothing is

Answer: 1/5