Positive integer y is 50 percent of 50 percent of positive integer x, and y percent of x equals 9. What is the value of x? Options:
A) 20 B) 60 C) 100 D) 120 E) 150
y = 0.5*0.5*x = x/4   y%*x = 9   (y/100)*x = 9   (x/400)*x = 9   x^2 = 9*400   x = 60   The answer is 60.
<result>B</result>
Positive integer y is 50 percent of 50 percent of positive integer x, and y percent of x equals 9. What is the value of x?