Problem 335 | Equilibrium of Parallel Force System

$15R_A = 10(60) + 7.5(80) + 5(50)$

$R_A = 96.67 \, \text{ kN}$           answer
 

$\Sigma M_A = 0$

$15R_B = 5(60) + 7.5(80) + 10(50)$

$R_B = 93.33 \, \text{ kN}$           answer