TRY TO SOLVE THE ANSWER :

A civil engineer is designing a reinforced concrete beam that needs to support a uniformly distributed load $($UDL$)$ of $10$ kN$/$m over a span of $6$ meters. The beam's cross$-$section is rectangular with a width of $300$ mm and a depth of $500$ mm$.$ Using a concrete strength of $30$ MPa and a steel reinforcement with a yield strength of $400$ MPa, calculate:

$1.$The maximum bending moment $($Mmax$)$ on the beam.

$2.$The required area of steel reinforcement $($As$)$ if the permissible stress in steel is limited to $0\mathrm{.}85$ times the yield strength. THANK YOU $!!!$