A certain car traveled twice as many miles from Town A to Town B as it did from Town B to Town C. From Town A to Town B, the car averaged 40 miles per gallon, and from Town B to Town C, the car averaged 50 miles per gallon. What is the average miles per gallon that the car achieved on its trip from Town A through Town B to Town C?  Choose one
A) 42.85
B) 40
C) 35
D) 41
E) 39
step 1) took LCM of 40 and 50.. came as 200.   step 2) 200 distance between B to C... do 200/50 hence 4 gallons used   step 3) twice distance.. hence 200*2= 400... do as above.. 400/40= 10 gallons used   step 4) total gallons.. 4+10= 14 gallons   step ) total miles= 200+400= 
<gadget id="calculator">200+400</gadget>
<output>600</output>
600 miles   hence.. average of whole journey= 600/14 which comes to 42.85   42.85nswer : 42.85
<result>A</result>
A certain car traveled twice as many miles from Town A to Town B as it did from Town B to Town C. From Town A to Town B, the car averaged 40 miles per gallon, and from Town B to Town C, the car averaged 50 miles per gallon. What is the average miles per gallon that the car achieved on its trip from Town A through Town B to Town C?