10. Medicine is packed in boxes, each weighing 4 kg 500g. How many such boxes can be loaded in a van which cannot carry beyond 800 kg?

To solve this problem, we first need to convert the weight of each box into the same unit as the weight limit of the van. The weight of each box is given in kg and g, while the weight limit of the van is given in kg.

1. Convert the weight of each box to kg. We know that 1 kg = 1000 g, so 500 g = 0.5 kg. Therefore, each box weighs 4.5 kg.

2. Next, we need to find out how many boxes the van can carry without exceeding the weight limit. We do this by dividing the weight limit of the van by the weight of each box.

800 kg ÷ 4.5 kg/box = 177.77 boxes

Since we can't have a fraction of a box, we round this down to the nearest whole number.

So, the van can carry 177 boxes without exceeding the weight limit.