Online NAPLAN Mathematics support for Years 3, 5, 7 and 9 across Australia
Year 9 · Number and Algebra · 20 questions · 30 min
Write the ratio 8:12 in simplest form
A recipe uses flour and sugar in the ratio 3:2. If you use 9 cups of flour, how much sugar?
Simplify the ratio 15:25
A map scale is 1:50,000. A distance of 5 cm on the map represents how many kilometres in reality?
If y is directly proportional to x and y = 12 when x = 3, find y when x = 7
A car travels 240 km in 3 hours. At this rate, how far will it travel in 5 hours?
Share $360 in the ratio 2:3:4
Express 16:20 in simplest form
If a = 10 when b = 5, and a is inversely proportional to b, find a when b = 2
A recipe for 4 people needs 2 eggs. How many eggs are needed for 10 people?
Simplify the ratio 18:27:36
A scale model of a building is 1:100. If the model is 50 cm tall, how tall is the real building?
The ratio of boys to girls in a class is 3:5. If there are 24 boys, how many girls are there?
If y is directly proportional to x and y = 18 when x = 2, find the constant of proportionality
A runner covers 400 metres in 50 seconds. What is their speed in metres per second?
Divide $500 in the ratio 1:4
On a map with scale 1:250,000, how many centimetres represent 50 km?
Three numbers are in the ratio 2:3:5. If their sum is 100, what are the numbers?
A shop sells apples at 5 for $2. How much do 15 apples cost?
If a = 6 when b = 4, and a is directly proportional to b, find a when b = 10
Book a free trial lesson, see how the platform works, and get a clear learning plan for your child.
