question_answer

If \[\frac{a}{27}=\frac{4}{b}=\frac{c}{18}=\frac{132}{297},\]then the value of \[\left( \frac{a+b}{c-1} \right)\] is:

A)  1                                

B)  3 

C)  7                                

D)  \[\frac{7}{3}\]

E)  None of these