Medicine is packed in boxes,each weighing4kg500g.how many such boxes can be loaded in a van which cannot carry beyond 800kg

Medicine is packed in boxes of each weighing = 4kg 500g = 4500g
Therefore number of boxes  that can be loaded in a van which cannot hold more than 800kg which is equal to 800000g = 800000/4500 boxes
                                                                                                                                                                                              = 177.77 boxes
Ans = 177 boxes can be put in the van.