Answer:
black dresses or suits = 20% or 0.2
navvy = 25% or 0.25
brown = 35% or 0.35
other = 20% or 0.20
Step-by-step explanation:
Given,
20% of the people are wearing black dresses or suits,
So, the people who are wearing black dresses or suit = = 0.2,
Now, 1/4 are wearing navy,
So, the percentage of people who wear navy colour = = 25%,
Also, 0.35 are wearing brown,
So, the percentage of the people who wear brown colour = = 35%
Thus, the percentage of rest of people = (100-20-25-35)%
= 20%
=
= 0.2