162 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? Options:	A) 120	B) 150	C) 180	D) 250	E) 440

Rationale: "let b be the number of boys in the school . 162 = xb / 100 b = 0.5 x 16200 = 0.5 x ^ 2 x ^ 2 = 32400 x = 180 the answer is c ."
Answer: C