Answer:
1 .Each classroom contains 20 students so we multiply it times 8
90% of (20x8).
90\100 x 160
9x16 students
144 students
Number of people wearing red pants
= 200/100 x 15
= 30
Those who wear both red shirts and red pants is 30.
Therefore the percentage is
= 30/500 x 100%
= 6%
