Ratios
George read 100 pages of a book in 10 minutes. How many pages did he read in 1 minute?
10 pages
3 shovels of sand are mixed with 2 shovels of gravel to make cement. What is the number of shovels of gravel needed for 20 shovels of sand?
8 shovels of gravel
The science materials cost $60.00 to do the experiment. If 20 students participated in the experiment, what was the unit cost per student?
$3.00
There are 50 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
30 black mice