"How did you get the number 600 (20% increase) if the proportion of accidents involving child passengers remained constant?" 600/1200 = 50%, just like 500/1000 = 50%. Therefore, the proportion of serious accidents involving child passengers (serious accidents involving child passengers/to...

I eliminated all the other answers until it came between (B) and (C). I incorrectly picked (B). I didn't pick (C) because the stimulus said that scientists picked their own problems, and formulated them in such a way as to make "scientific solutions feasible." Therefore, even if they had b...

Hi all, I ended up choosing (D) for this question, although the correct answer is (E). How is (E) correct? Just because there's a difference in how unsalable and recycled garments are counted, it doesn't necessarily explain the percentage change. I'm also confused whether the percentages are being d...