Twenty times a positive integer is more than its square by 96, then the positive integer is  Choose one
A) 13
B) 10
C) 11
D) 12
E) 14
Explanation:   Let the number be x. Then,   20x = x2 + 96   =&gt; x2 - 20x + 96 = 0   =&gt;(x - 12)(x - 8) = 0   =&gt; x = 8 or 12   Answer: Option 12
<result>D</result>
Twenty times a positive integer is more than its square by 96, then the positive integer is