Cargo Truck

Making a simple operation with proportionality:

We have 400 bricks in the truck, then we have space for more 600 bricks.

$1000$ Bricks = $600$ Cement Bags

$600$ Bricks = $x$ Cement Bags

$360000$ = $1000x$

$x=360$

Then, we can fit more 360 cement bags in this truck.

$1000$ $bricks =$ $600$ $bags$ $cement$

therefore,

$1$ $brick =$ $0.6$ $bag$ $cement$

since the truck is already filled with $400$ bricks, it needs more $1000 - 400 = 600$ bricks

The equivalent of $600$ bricks to bags of cement is

$600$ $bricks$ $(\frac{0.6 bag}{1 brick}) = 360$ $bags$