Direct and inverse proportion
8th grade (Year 9 in England) · 16 questions · Common Core: 7.RP.A.2, HSA.CED.A.2 · England: GCSE Foundation Ratio, GCSE Higher Ratio
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Question 1
3 painters take 6 days to paint a school. How many days would 6 painters take, working at the same rate?
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Question 2
y is directly proportional to x. When x = 1, y = 5. Find y when x = 4.
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Question 3
2 painters take 6 days to paint a school. How many days would 4 painters take, working at the same rate?
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Question 4
y is inversely proportional to x. When x = 1, y = 42. Find y when x = 4.
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Question 5
5 painters take 11 days to paint a school. How many days would 10 painters take, working at the same rate?
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Question 6
y is directly proportional to x. When x = 2, y = 12. Find y when x = 4.
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Question 7
3 painters take 10 days to paint a school. How many days would 2 painters take, working at the same rate?
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Question 8
y is directly proportional to x. When x = 1, y = 8. Find y when x = 2.
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Question 9
8 painters take 4 days to paint a school. How many days would 4 painters take, working at the same rate?
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Question 10
y is directly proportional to x. When x = 2, y = 6. Find y when x = 4.
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Question 11
2 painters take 7 days to paint a school. How many days would 4 painters take, working at the same rate?
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Question 12
y is inversely proportional to x. When x = 1, y = 42. Find y when x = 3.
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Question 13
6 painters take 11 days to paint a school. How many days would 3 painters take, working at the same rate?
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Question 14
y is inversely proportional to x. When x = 2, y = 24. Find y when x = 3.
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Question 15
6 painters take 10 days to paint a school. How many days would 2 painters take, working at the same rate?
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Question 16
y is inversely proportional to x. When x = 2, y = 24. Find y when x = 6.
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