A rectangular beam $28cm$ by $50cm$ is

reinforced for tension with $6-28mm$ bars.

Stirrups diameter is $12mm.$ The ultimate

compressive strength of concrete, fc is $34\mathrm{.}5$

MPa and steel yield strength is

$345$ MPa.

Answer the following:

a$)$Depth of compression concrete in $mm$

b$)$ Tensile steel stress in MPa $($answer is $747)$

c$)$Ultimate Moment Capacity, KN$-$m $($answer

is $365)$

d$)$Ultimate Moment Capacity at which the

concrete and steel reach their capacity

simultaneously. $($answer is $382)$