Decide What Values of the Variable Cannot Possibly Be Solutions $24 \mathrm {~min}$

Multiple Choice

Decide what values of the variable cannot possibly be solutions for the equation.
-A water tank can be filled in 6 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?

A) $24 \mathrm {~min}$
B) $\frac { 24 } { 7 } \mathrm {~min}$
C) $\frac { 1 } { 14 } \mathrm {~min}$
D) $\frac { 1 } { 48 } \mathrm {~min}$