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Class VIII Mathematics Quiz: Direct and Inverse Proportions

Class VIII
Mathematics
Direct and Inverse Proportions
12 questions
HARD

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Preview questions

1. If 5 kg of rice costs ₹200, what will be the cost of 8 kg of rice assuming direct proportion?

₹320 · ₹400 · ₹250 · ₹300

2. If x is directly proportional to y, and y = 10 when x = 5, what is the value of y when x = 15?

30 · 20 · 25 · 15

3. In an inverse proportion, if a = 4 when b = 3, what is the value of b when a = 8?

1.5 · 2 · 3 · 4

4. If the time taken to complete a task is inversely proportional to the number of workers, how many days will it take 4 workers to complete the task if it takes 10 days for 2 workers?

5 days · 10 days · 15 days · 20 days

5. If 3 apples cost ₹60, how much will 9 apples cost in direct proportion?

₹120 · ₹150 · ₹180 · ₹90