The size of a brick is 25cm x 12 cm x 55cm and its density is 1.8 x10^3 kg/m^3. How many trips must a 3-ton dumper carry out to transport 15,000 bricks to a construction site?

Question

anonymous · Answer

All you need to do is to convert between units.
1) Calculate the volume of one brick. The answer units are cm^3. Convert the units to m^3.
2) Multiply the volume of the brick to the density to get the mass of one brick. The answer units are kg.
3) Since the dumper has to transport 15000 bricks. calculate the mass of 15000 bricks. ( which is equal to 15000 times the mass of one brick).
4) The capacity of the dumper is 3 tons. Convert it to kg.
5) Divide the mass of 15000 bricks by the answer you get in Step 4.
6) There you go! That is the number of trips to be made by the dumper.