On a ferry, there are 38 cars and 12 trucks. The cars have an average mass of 950 kg and the trucks have an average mass of 3100 kg. What is the average mass of all 50 vehicles on the ferry?  Choices.
A) 1442	B) 1448	C) 1454	D) 1460	E) 1466
The total mass of the vehicles is 38*950+12*3100= 
<gadget id="calculator">38*950+12*3100</gadget>
<output>73_300</output>
73300   The average mass is   73300/50= 
<gadget id="calculator">  73300/50</gadget>
<output>1_466</output>
1466   The answer is 1466.
<result>E</result>
On a ferry, there are 38 cars and 12 trucks. The cars have an average mass of 950 kg and the trucks have an average mass of 3100 kg. What is the average mass of all 50 vehicles on the ferry?