The water flowing through a $1\mathrm{.}8$ cm $($inside diameter$)$ pipe flows out through three $1\mathrm{.}2$ cm pipes. $($a$)$ If the flow rates in the three smaller pipes are $25,15,$ and $11\frac{L}{m}in,$ what is the flow rate in the $1\mathrm{.}8$ cm pipe? $($b$)$ What is the ratio of the speed of water in the $1\mathrm{.}8$ cm pipe to that in the pipe carrying $25\frac{L}{m}in?$

$($a$)$ Number $$ Units

$($b$)$ Number $$ Units