question_answer

In\[\Delta ABC\], D and E are points on the sides AB and AC respectively such that\[DE\left| {} \right|BC\]. If AD=4 units, AE=8 units, DB= \[x-4\] units and EC=\[3x-19\]units, then x is equal to:

A) 7 units  

B) 15 units

C) 14 units

D) 11 units

E) None of these