Assuming:

X $=6$ ft

Y $=5$ ft

The floor is supporting a load of $80$ #$/$ft$^2.$

Calculate the point load that one of the rim joists would apply on the beamon grid line C spanning between $2$ and $3.$See the framing diagram above.

Assuming:

$x=6ft$

$Y=5ft$

The floor is supporting a load of $80\frac{\text{\#}}{t}{t}^2.$

Calculate the point load that one of the rim joists would apply on the beam

on grid line $C$ spanning between $2$ and $3.$