Three hundred multiples of seven are chosen at random, and 300 multiples of eight are chosen at random. Approximately what percentage of the 600 selected numbers are odd?
Choose the correct choice from the following answers.
A) 26.67% B) 36.67% C) 25% D) 46.67% E) 56.67%
--&gt; Multiples of 7 are 7, 14, 21, 28, 35, 42....   Out of first 4 multiples, 2 are odd; out of first 6 multiples, 3 are odd.   So approx. 50 % of the 300 multiples are odd i.e 150 multiples.   --&gt; Similalrly, for 8 multiples are:8,16,24...   All are even so 0 % are odd.   Total odd= (150+0)/(300+300)= 150/600=(1/4) = 25%   Answer 25%
<result>C</result>
Three hundred multiples of seven are chosen at random, and 300 multiples of eight are chosen at random. Approximately what percentage of the 600 selected numbers are odd?