question_answer

A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?

A)  \[\frac{1}{3}\]                         

B)  \[\frac{1}{4}\]

C)  \[\frac{1}{5}\]             

D)  \[\frac{1}{7}\]