11.2 - Direct Proportion
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Practice Questions
Test your understanding with targeted questions
If the cost of 2 kg of sugar is
72, how much would 5 kg cost?
💡 Hint: Think about the ratio.
If 4 litres of petrol cost 60, what would 16 litres cost?
💡 Hint: Multiply the cost of 4 litres by 4.
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Interactive Quizzes
Quick quizzes to reinforce your learning
If two quantities are said to be in direct proportion, what does that mean?
💡 Hint: Think about how one quantity affects another.
Is it true that if two variables maintain constant ratios, they are in direct proportion?
💡 Hint: Recall how ratios work.
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Challenge Problems
Push your limits with advanced challenges
A photograph of a bacteria is enlarged 50,000 times, having a length of 5 cm. What is the actual length of the bacteria, and if enlarged only 20,000 times, what would be its length?
💡 Hint: Think about how enlargement affects size.
Two cities are 4 cm apart on a map with a scale of 1:30000000. What is the actual distance?
💡 Hint: Use the scale ratio to calculate actual distances.
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