Machine A can produce 1,000 sausages in 4 hours. Machine B can produce 1,000 sausages in 8 hours. Working together at their respective rates, how long will it take the machines to produce 1,000 sausages?
Choose the correct choice from the following options:
A) 1 hr 40 min B) 2 hrs C) 2 hrs 40 min D) 3 hrs E) 4 hrs 20 min
ARate = 1000/4= 
<gadget id="calculator">1000/4</gadget>
<output>250</output>
250 Sausages/Hour   BRate= 1000/8= 
<gadget id="calculator">1000/8</gadget>
<output>125</output>
125 Sausages/Hour   TotalSausages= (ARate + BRate) * Hours   Hours = TotalSausages / (ARate + BRate)   Hours = 1000 Sausages / (250 Sausages/Hour + 125 Sausages/Hour) = 2.667 Hours   C. 2 hrs 40 mins
<result>C</result>
Machine A can produce 1,000 sausages in 4 hours. Machine B can produce 1,000 sausages in 8 hours. Working together at their respective rates, how long will it take the machines to produce 1,000 sausages?