The mean of 1^3,2^3,3^3,4^3,5^3 is?  Choose the correct choice from the following:
A) 30	B) 45	C) 50	D) 60	E) 75
1^3+2^3+3^3+-----+n^3 = [n(n+1)/2]^2   1^3+2^3+3^3+-----+5^3 = (5*6/2)^2 = 225   Required average is = 225/5= 
<gadget id="calculator">225/5</gadget>
<output>45</output>
45   Answer is 45
<result>B</result>
The mean of 1^3,2^3,3^3,4^3,5^3 is?