The average of six number is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. what is the average of the remaining four number ? Choose the correct answer:
A) 2.3
B) 4.6
C) 4.7
D) 4.8
E) None of these
solution:   Sum of the remaining four numbers = (3.95 × 6) - [(3.4 × 2) + (3.85 ×2)]   =23.70 -(6.8 + 7.7) = 23.70 - 14.5 = 9.20.   ∴ Required average =9.2/4= 
<gadget id="calculator">9.2/4</gadget>
<output>2.3</output>
2.3 2.3nswer 2.3
<result>A</result>
The average of six number is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. what is the average of the remaining four number ?