Determine the required reinforcement $($As$)$ for a beam shown in Figure $1$ to carry dead load moment of

$40kN-m,$ live load moment of $100kN-m($both service$)($Including beam weight$).f{c}^{\text{'}}=20$MPa and $fy=$

$350$MPa. Show the sketch of your design. Use $75-mm.$ effective cover. For the factored load, use $1\mathrm{.}2$

DL and $1\mathrm{.}6$ LL$.$