The data obtained during a stream gauging using a current meter with a rating $v=0\mathrm{.}043+0\mathrm{.}67N$ is given in table $2.$ The velocity is measured at $0\mathrm{.}4$ times the depth of flow from the streambed.

Compute the discharge using the mid$-$section method.

Table $2$

$\backslash$table$[[$Distance from bank in $m,0,2,4,6,8,10,12,14,16],[$Depth$,m,0,1\mathrm{.}1,2\mathrm{.}2,4\mathrm{.}1,8\mathrm{.}2,\frac{4.}{b}ar(3),2\mathrm{.}6,1\mathrm{.}3,0],[$Revolutions$,-,12,38,42,46,31,35,16,-],[$Time $,$ s$,-,42,50,56,61,51,52,48,-]]$