Ratio
A classroom has 30 desks. 18 of them are occupied. What is the ratio of occupied to empty desks?
18: 12
A fruit basket contains 12 apples and 8 oranges. What is the ratio of apples to total fruit?
12:20
A drawer contain 14 chocolates, 7 chips and 11 biscuits. What is the ratio of chips to the total stuff inside the drawer?
7:32