A$.$ The rounded maximum span $($to the upper $100$ mm $)$ being safe for a two adjacent edges discontinuous slab whose dx is $140$ mm and having a modification factor of $1\mathrm{.}35$ is: a$.4400$ mm b$.5000$ mm c$.3800$ mm$.$

B$.$ If a discontinuous slab is $(4$ m$6$ m$)$ in size carrying an ultimate loading of $15$kN$/$m$2,$ what is the maximum intensity on the longer beam is: a$.15$kN$/$m b$.45$kN$/$m C$.30$kN d$.30$kN$/$m$.$

C$.$ The maximum possible content of concrete in a slab of $200$ mm thickness using T steel is a$.199,780$ mm$2$ b$.199,740$ mm$2$ c$.299,780$ mm$2$ d$.299,740$ mm$2$

$($ANWER ALL THREE SUBPARTS$)$