Ratio and proportion

A necklace has 3 circles for every 1 square. What is the ratio of circles to squares?

1. A3 : 1
2. B1 : 3
3. C3 : 4
4. D4 : 1

For the same necklace (3 circles to 1 square), what is the ratio of squares to circles?

1. A1 : 3
2. B3 : 1
3. C1 : 4
4. D3 : 4

A bag has 2 orange, 3 blue and 5 green counters. What is the ratio orange : blue : green?

1. A2 : 3 : 5
2. B5 : 3 : 2
3. C2 : 5 : 3
4. D3 : 2 : 5

Zara has 10 blue pens and 5 red pens. What is the ratio of red pens to blue pens?

1. A5 : 10
2. B10 : 5
3. C1 : 5
4. D5 : 5

Green paint uses 1 can of blue and 2 cans of yellow. What is the ratio yellow : blue?

1. A2 : 1
2. B1 : 2
3. C1 : 1
4. D3 : 1

For every 1 black bead there are 3 white beads. What is the ratio black : white?

1. A1 : 3
2. B3 : 1
3. C1 : 4
4. D4 : 1

What does a ratio compare?

1. AOne part to another part
2. BA part to the whole
3. COnly whole numbers
4. DNothing

If there are 3 red and 4 blue beads, the ratio of red to blue is 3 : 4.

The ratio 1 : 3 means the same as 3 : 1.

There are 7 black for every 9 white. What is the ratio of black to white?

1. A7 : 9
2. B9 : 7
3. C7 : 16
4. D16 : 9

There are 9 black for every 6 white. What is the ratio of black to white?

1. A9 : 6
2. B9 : 15
3. C6 : 9
4. D15 : 6

There are 3 apples for every 9 oranges. What is the ratio of apples to oranges?

1. A12 : 9
2. B3 : 12
3. C3 : 9
4. D9 : 3

There are 2 cats for every 6 dogs. What is the ratio of cats to dogs?

1. A8 : 6
2. B6 : 2
3. C2 : 8
4. D2 : 6

There are 7 cats for every 7 dogs. What is the ratio of cats to dogs?

1. A14 : 7
2. B7 : 7
3. C7 : 7
4. D7 : 14

There are 8 red for every 4 blue. What is the ratio of red to blue?

1. A8 : 12
2. B8 : 4
3. C12 : 4
4. D4 : 8

There are 8 cats for every 3 dogs. What is the ratio of cats to dogs?

1. A3 : 8
2. B8 : 11
3. C8 : 3
4. D11 : 3

There are 1 apples for every 4 oranges. What is the ratio of apples to oranges?

1. A1 : 4
2. B5 : 4
3. C4 : 1
4. D1 : 5

There are 8 cats for every 8 dogs. What is the ratio of cats to dogs?

1. A8 : 16
2. B8 : 8
3. C16 : 8
4. D8 : 8

There are 7 circles for every 1 squares. What is the ratio of circles to squares?

1. A8 : 1
2. B7 : 1
3. C7 : 8
4. D1 : 7

There are 5 red for every 6 blue. What is the ratio of red to blue?

1. A5 : 6
2. B11 : 6
3. C6 : 5
4. D5 : 11