In a sample of high school students, 20 percent are sophomores, and 65 percent are not freshmen. What percentage of the high school students are juniors or seniors?  Options.
A) 15	B) 25	C) 35	D) 45	E) 55
65 percent are not freshman --&gt; This means 65 percent are either sophomores, juniors, or seniors   Already, we know % that are sophomores = 20 %   So, % of juniors and seniors = 65 % - 20 % = 45 % .. =&gt; (45)
<result>D</result>
In a sample of high school students, 20 percent are sophomores, and 65 percent are not freshmen. What percentage of the high school students are juniors or seniors?