40. In a box there are 10 T-shirts,

Question

15 long sleeves shirts and 2.5
gowns. If one attire is picked at
random, what is the probability
that the attire is either a T-shirt
or a gown?
A. 7/11
B. 11/23
C. 7/100
D. 7/10

Answer 1

The total number of attires in the box is 10 + 15 + 2.5 = 27.5
The probability of picking a T-shirt or a gown is (10 + 2.5) / 27.5 = 12.5 / 27.5
Simplifying the fraction, we get 1 / 2.2 = 10 / 22 = 5 / 11
Therefore, the probability that the attire is either a T-shirt or a gown is 5 / 11.
The correct option is not listed, so the correct answer is not provided.