Machine P and Machine Q are each used to manufacture 330 sprockets. It takes Machine P 10 hours longer to produce 330 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 options
A) 5  B) 15  C) 3  D) 95  E) 125
P makes x sprockets per hour.   Then Q makes 1.1x sprockets per hour.   330/x = 330/1.1x + 10   1.1(330) = 330 + 11x   11x = 33   x = 3   The answer is 3.
<result>C</result>
Machine P and Machine Q are each used to manufacture 330 sprockets. It takes Machine P 10 hours longer to produce 330 sprockets than Machine Q. Machine Q produces 10% more sprockets per hour than Machine A. How many sprockets per hour does Machine A produce?