242 students represent x percent of the boys at a school. If the boys at the school make up 50% of the total school population of x students, what is x?	Answers:  A) 120  B) 150  C) 180  D) 200  E) 220
Let B be the number of boys in the school.   242 = xB/100   B = 0.5x   24200=0.5x^2   x^2 = 48400   x = 220   The answer is 220.
<result>E</result>
242 students represent x percent of the boys at a school. If the boys at the school make up 50% of the total school population of x students, what is x?