Q$1)$ The rainfall intensities during each $30$min of a $150-$min storm over a $5m2$ basin are $4\mathrm{.}5,3,1,3\mathrm{.}5,$ and $2c\frac{m}{h}r,$ respectively. The direct runoff from the basin is $15.m3.$ Determine the $$ index for the basin.

Q$2)$ Using the $$ index of $2.$xx cm $\frac{?}{hr},$ determine the rainfall excess from the storm of $($Q$1)$ in $cm$ depth and in $m3$ volume

The xx is $24$