The average of 20, 40 and 150 is twice the average of 10, 30, and which of the following ?	Choose the most appropriate option.
A) 1)10	B) 2)30	C) 3)65	D) 4)90	E) 5)180
20 40 150 = 150+60= 
<gadget id="calculator">150+60</gadget>
<output>210</output>
210/3= 
<gadget id="calculator">210/3</gadget>
<output>70</output>
70.   70/2= 
<gadget id="calculator">70/2</gadget>
<output>35</output>
35   10 30 x= 40+x/3 should be smaller than 35   cross multiply 35*3-40= 
<gadget id="calculator">35*3-40</gadget>
<output>65</output>
65   3)65
<result>C</result>
The average of 20, 40 and 150 is twice the average of 10, 30, and which of the following ?