How many minutes does it take John to type u words if he types at the rate of x words per minute? Answers:  A) x/y  B) u/x  C) xy  D) 60x/y  E) y/(60x)
time*rate=job --&gt; time*x=u --&gt; time=u/x.   Answer: u/x.
<result>B</result>
How many minutes does it take John to type u words if he types at the rate of x words per minute?