90 students represent x percent of the boys at Jones Elementary School. If the boys at Jones Elementary make up 20% of the total school population of x students, what is x?
Options:
A) 125 B) 150 C) 212 D) 250 E) 500
90=x/100*20/100*x=&gt;x^2 = 9*10000/2 = &gt; x =212   212
<result>C</result>
90 students represent x percent of the boys at Jones Elementary School. If the boys at Jones Elementary make up 20% of the total school population of x students, what is x?