Question $5$

Determine the tensile capacity $(N_t)$ of the following plate:

Given: $f_y=300\frac{N}{m}{m}^2$;$f_u=430\frac{N}{m}{m}^2$

Hint: Section $7$ of AS$4100$:$2020$

$($a$)1184\mathrm{.}2kN$

$($b$)1215\mathrm{.}0kN$

$($c$)1760\mathrm{.}0kN$

$($d$)1620\mathrm{.}0kN$

the answer is b$,$ but would like help with solving for answer