G8-MATH-13 Direct and Inverse Proportions

What is the relationship between the amount of sugar and the total cost when purchasing sugar?

• Direct Proportion
• Inverse Proportion
• No Relation
• Random Relation

If Mohan uses 300 mL of water for 1 person, how much water will he need for 5 persons?

• 600 mL
• 900 mL
• 1200 mL
• 1500 mL

If 2 students take 20 minutes to arrange chairs, how long will 5 students take?

• 8 minutes
• 12 minutes
• 16 minutes
• 20 minutes

In the example of Zaheeda, what happens to the time taken as her speed increases?

• Time increases
• Time decreases
• Time remains constant
• Time doubles

If the price of a textbook increases, what happens to the number of books that can be bought with a fixed amount of money?

• Increases
• Decreases
• Remains the same
• Doubles

Which of the following is an example of inverse proportion?

• Distance and time for a fixed speed
• Cost and quantity of items
• Height and weight
• Age and height

If a car uses 4 liters of petrol to travel 60 km, how far can it travel with 12 liters?

• 120 km
• 180 km
• 240 km
• 300 km

What is the constant product in the example of the price of books and the number of books purchased?

• 6000
• 150
• 40
• 120

If the number of workers increases, what happens to the time taken to complete a job?

• Increases
• Decreases
• Remains the same
• Doubles

Which of the following is NOT an example of direct proportion?

• Cost and quantity
• Speed and distance
• Height and weight
• Time and work done