A) \[\frac{11}{8}\]
B) \[\frac{8}{11}\]
C) \[3\]
D) None of these
Correct Answer: A
Solution :
\[\frac{\Delta \,DBC}{\Delta \,ABC}=\frac{1}{2}\Rightarrow \,\,2\Delta DBC=\Delta ABC\] \[\Rightarrow \,\,2(14x-7)=\frac{49}{2}\,\,\Rightarrow \,\,x=\frac{77}{56}=\frac{11}{8}\].You need to login to perform this action.
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