If (a + b):(b + c):(c + a) = 7:6:5 and a + b + c = 27, then what will be the value of 1/a: 1/b :1/c?

If (a + b):(b + c):(c + a) = 7:6:5 and a + b + c = 27, then what will

1.	If (a + b):(b + c):(c + a) = 7:6:5 and a + b + c = 27, then what will be the value of 1/a: 1/b :1/c?
A.	3:6:4
B.	3:2:4
C.	4:3:6
D.	3:4:2
Answer» D. 3:4:2