To find the percentage,we need to form a fraction first:
The nominator would be: the students who have not blue eye and were not wearing orange at the same time (50)
The denominator: students with not blue eyes (20)
Hence we can form the fraction: 20/50
To find the percentage, we can multiply the fraction by 100%:
20/50x100%
=2/5 x 100%
= 200/5 %
= 40%
Therefore the answer is 40%.
Hope it helps!
