📊 Direct and Inverse Proportions
Understand the relationships between quantities that change together and solve real-world problems using proportional reasoning. **What you'll learn:** - Identify direct proportion and write proportional equations - Identify inverse proportion and apply the constant product principle - Distinguish between direct and inverse proportions in context - Solve practical problems involving proportional relationships - Find unknown values using the unitary method and proportional constants
Questions in this quiz
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- Question 1
If 5 notebooks cost ₹75, what is the cost of 8 notebooks?
- Question 2
In direct proportion, if one quantity doubles, the other quantity also doubles.
- Question 3
If and are directly proportional, then ___
- Question 4
Which of the following is an example of direct proportion?
- Question 5
If 6 workers can build a wall in 12 days, how many days will it take 9 workers to build the same wall (assuming work rate is constant)?
- Question 6
In inverse proportion, the product of the two quantities is always constant.
- Question 7
If the cost of 15 kg of rice is ₹450, then the cost of 22 kg of rice is ___
- Question 8
A car travels at 60 km/h and covers a distance in 5 hours. At what speed must it travel to cover the same distance in 3 hours?
- Question 9
Which statement correctly describes the relationship between the side length of a square and its perimeter?
- Question 10
If and are inversely proportional and when , then when , ___