15 times a positive integer is more than its square by 56, then the positive integer is Choose the correct answer:  A) 13  B) 8  C) 11  D) 12  E) 14
Explanation:   Let the number be x. Then,   15x = x2 + 56   =&gt; x2 - 15x + 56 = 0   =&gt;(x - 7)(x - 8) = 0   =&gt; x = 7 or 8   Answer: Option 8
<result>B</result>
15 times a positive integer is more than its square by 56, then the positive integer is