B. Quadrant 3
The top left corner is quadrant 1 then the top right corner is quadrant 2 then the bottom right corner is quad 3
Since there are three black shirts and 7 blue shirts, he has a 3/10 chance of picking a black.
So, 10^6 = 1,000,000 and 25*1,000,000 is equivalent to 25,000,000.
Which page is this in the book
Five voted for green or yellow and 10 voted for red or blue