Technically for this, I believe you only have to divide 32 by 4 which equals 8 now multiply 8 x 3 and 24 is the answer so 24/32 people are wearing blue jeans, hope that helps
The answer is b. Notice that the problem is looking for the reaction to product ratio, which is tricky because it's easy to follow the order of the column and calculate the inverse of it. Check the first ratio, 0.3/2=0.15, we can immediately choose b out of the other 4 choices.
