If (a + b - c) : (b + c - a) : (a + c - b) = 6 : 5 : 7, then \(\frac{ – McqOptions

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1.	If (a + b - c) : (b + c - a) : (a + c - b) = 6 : 5 : 7, then \(\frac{1}{a}:\frac{1}{b}:\frac{1}{c}\) is equal to
A.	156 : 132 : 143
B.	132 : 156 : 143
C.	156 : 143 : 132
D.	143 : 156 : 132
Answer» C. 156 : 143 : 132

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