If there are 12 circles and 3 are shaded, what percent of the circles are shaded?
a) 3%
b) 9%
c) 15%
d) 20%
e) 25%

e) 25%  50% would be 6, so 25% would be 3. 

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct