Ratio and Rates

1.

1 point

What is the unit ratio for 8:2

8:2

4:1

1:2

1:4

2.

1 point

The ratio of goals to behinds scored by the Melbourne Football Club in a season was 1 : 2. Find the number of behinds scored when the club scored 9 goals

2

9

18

1

3.

1 point

3 cm : 6 cm simplified is:

2:1

9:1

6:1

1:2

4.

1 point

Wilma mixes 8 litres of blue paint, 4 litres of green and 4 litres of white to make the colour that she wants to paint the outside of her house.
Find the ratio of blue paint to green paint to white paint

4:4:8

4:8:4

4:4:4

8:4:4

5.

1 point

The ratio of goals to behinds scored by the Melbourne Football Club in a season was 1 : 2 Find the number of goals scored when the club scored 18 behinds

2

1

36

9

6.

1 point

The ratio of goals to behinds scored by the Melbourne Football Club in a season was 1 : 2 Find the number of goals scored when the club scored 8 behinds

4

1

2

8

7.

1 point

A classroom has 12 girls and 6 boys. The ratio of girls to boys is

12:6

18:6

6:12

12:18

8.

1 point

Find the value of a in each case.
(a) 3 : 5 = a : 15

9

5

3

15

9.

1 point

A bread recipe uses 250 g of flour to 500 ml of water. If I use 100 g of flour then the volume of water I should use is:

250ml

200ml

500ml

850ml

10.

1 point

A classroom has 12 girls and 6 boys. Find the ratio of boys to the total number of students in the class.

6:18

6:12

12:6

18:6

11.

1 point

When Simon and Michelle respectively share $18 in the ratio 4 : 5, this gives:

Simon $6 and Michelle $12

Simon $8 and Michelle $10

Simon $10 and Michelle $8

Simon $12 and Michelle $6

12.

1 point

What is 45 : 5 in simplest form

9:1

5:45

45:5

50:5

13.

1 point

The ratio of Nell’s height to Lucinda’s height is 1 : 1.5. If Nell is 1.4 m tall then Lucinda’s height is:

1.2m

2.1m

2.9m

1.74m

14.

1 point

1 : 5 = k : 45
The value of k is

60

27

9

75

15.

1 point

Simplify 5 cm : 10 mm

50mm : 10mm

1mm : 5mm

5mm: 1mm

5cm : 10mm

16.

1 point

A cake recipe requires flour and sugar to be mixed in the ratio of 3 : 2.
If 50 grams of sugar is used, how much flour is needed?

5

50

75

125

17.

1 point

A soccer team has five boys and three girls.
The ratio of boys to girls is:

8:3

3:5

5:3

3:8

18.

1 point

The ratio of goals to behinds scored by the Melbourne Football Club in a season was 1 : 2 Find the number of behinds scored when the club scored 15 goals

1

30

2

15

19.

1 point

A formula one racing car has a top speed of 500 km/h. How many times faster is the racing car compared to a cyclist travelling at 50 km/h

5

10

50

1/10

20.

1 point

Find the value of a in each case.
(a) a : 18 = 10 : 36

36

5

18

20

21.

1 point

Simplify 20mm : 3cm

20mm : 30mm

2mm :3 mm

23mm: 30mm

20mm : 3cm