Q.1.
⁄ of the dogs are Labradors and ⁄ are Alsatians. What is this fact expressed as the ratio of Alsatians to Labradors?
Q.2.
Each of the following ratios show the ratio of girls to boys in three classes. If each class has the same number of pupils, which of the classes has the greatest ratio of girls to boys: 16:20, 8:10, 1:1.25?
Q.3.
One hundred paintings have to be selected for an art exhibition. If the ratio of amateur paintings to professional paintings has to be 2:3, how many amateur paintings and professional paintings have to be selected?
Q.4.
If the ratio of boys to girls is 1:1, which of the following statements is correct?
Q.5.
How else can the ratio 1.25:4 be written?
Q.6.
The ratio of brown rats to black rats is 4:If there are 24 black rats, how many brown rats are there?
Q.7.
Peter has 20 blue pens. How many red pens must he buy if the ratio of blue to red pens has to be 2:3?
Q.8.
The ratio of small houses to big houses is 4:Which of the following would not be acceptable on the basis of this ratio?
Q.9.
How else can the ratio 8:56 be written?
Q.10.
The ratio of green bottles to white bottles is 3:What fraction of the bottles is white?