When positive integer x is divided by positive integer y, the remainder is 7. If x/y = 86.1, what is the value of y?  Choose the correct choice from the following answers.
A) 72	B) 71	C) 70	D) 30	E) 45
When positive integer x is divided by positive integer y, the remainder is 7 --&gt; x=qy+7;   x/y=86.1 --&gt; x=86y+0.1y (so q above equals to 86);   0.1y=7 --&gt; y=70.   Answer: 70.
<result>C</result>
When positive integer x is divided by positive integer y, the remainder is 7. If x/y = 86.1, what is the value of y?