You may use a calculator for the questions in this quiz.
1) I am going to make a metal sculpture that has a volume of 450 cm3. I am going to melt down cubes and the dimensions of these cubes are given below.
How many cubes will I need to ensure that I have enough metal to make the sculpture?
2) I have 300 cm3 of old plastic that I am going to recycle and make into reusable coffee cups. Each recycled coffee cup needs to have 65 cm3 of recycled plastic. What is the greatest number of coffee cups that I can make?
3) I am going to make a metal sculpture that has a volume of 125 cm3. I am going to be melting down many small cuboids and the dimensions of these cuboids are given below.
What is the minimum number of cuboids that I need to use to ensure that I have enough metal to make the sculpture?
4) I have the metal block below.
I am going to melt this metal block down to make as many spheres that have a radius of 4 as possible.
What is the maximum number of spheres that I am able to make? Note: the formula for the volume of a sphere is: