What is the ratio of red, blue and black marbles?
6 : 3 : 5
6, 3 and 5
6 - 3 - 5
How can you simplify the ratio 8 : 32?
4 : 16
\[\frac{8}{32}\]
1 : 4
How can you simplify the ratio 2 : 3.6 so that it does not involve decimals?
36 : 2
5 : 9
20 : 36
How can you simplify the ratio \(\frac{2}{3} : \frac{3}{4}\)?
8 : 9
2 : 3
3 : 4
Purple paint is made by mixing red and blue paint in the ratio 2 : 3. If 15 litres of blue paint is used, how much red paint will be needed?
5 litres
6 litres
10 litres
A class of boys and girls is divided in the ratio 4 : 5. Could there be 31 pupils in the class?
Yes
No
Impossible to tell
Two sisters share pocket money in the ratio of their ages. The first girl is 5 and the second girl is 7. The girls are given £36 between them. How much money does the younger girl receive?
£5
£12
£15
Three men receive an overtime bonus of £100 to share between them in the ratio 12 : 18 : 30. How much does each man get?
£12, £18 and £30
£20, £30 and £50
£15, £25 and £60
A map has a scale of 1 cm = 5 km. The distance between two towns is 95 km. What distance would this be on the map?
17 cm
19 cm
21 cm
A floor plan of a house is drawn using the scale 2 cm = 1.5 m. In the floor plan the length of the long exterior wall is shown as 15 cm. How long is the actual long exterior wall of the house?
11.25 m
12 m
22.5 m