If a + b + c = 15 and a2 + b2 + c2 = 83 then the value of a3 + b3 + c3 3abc

If a + b + c = 15 and a2 + b2 + c2 = 83 then the value of a3 + b3 + c3

1.	If a + b + c = 15 and a2 + b2 + c2 = 83 then the value of a3 + b3 + c3 3abc
A.	200
B.	180
C.	190
D.	210
Answer» C. 190