Three hundred multiples of seven are chosen at random, and 450 multiples of eight are chosen at random. Approximately what percentage of the 750 selected numbers are odd?
Pick one:
A) 20%  B) 25%  C) 40%  D) 50%  E) 80%
About half the multiples of seven will be odd while all the multiples of eight are even.   The percentage of odd numbers is about (1/2)(300) / 750 = 20%   The answer is 20%.
<result>A</result>
Three hundred multiples of seven are chosen at random, and 450 multiples of eight are chosen at random. Approximately what percentage of the 750 selected numbers are odd?