In 16 minutes, the minute hand gains over the hour hand by

In 1 hour, the minute hand gains $330°$ over the hour hand.

 i.e. in 60 minute, the minute hand gains $330°$over the hour hand

$\therefore$ In 16 minutes, the minute hand gains over the hour  hand by

$$\begin{gathered} \frac{{330}^{\circ }}{60}\times {16}^{\circ } \\ ={88}^{\circ } \end{gathered}$$