Machine P and Machine Q are each used to manufacture 440 sprockets. It takes Machine P 10 hours longer to produce 440 sprockets than Machine Q. Machine Q produces 10% more sprockets per hour than Machine A. How many sprockets per hour does Machine A produce?  Choose the correct choice from the following answers.
A) 5  B) 4  C) 55  D) 95  E) 125
P makes x sprockets per hour.   Then Q makes 1.1x sprockets per hour.   440/x = 440/1.1x + 11   1.1(440) = 440 + 11x   11x = 44   x = 4   The answer is 4
<result>B</result>
Machine P and Machine Q are each used to manufacture 440 sprockets. It takes Machine P 10 hours longer to produce 440 sprockets than Machine Q. Machine Q produces 10% more sprockets per hour than Machine A. How many sprockets per hour does Machine A produce?