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Back to OCR Direct & Inverse Proportion (H) Home
​Proportion: Quiz 5 - Answers
​1)
a)
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​b) 20
c) 6
d) 12
 
2)
a)
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​b) 75
c) 10
d) 450
 
3)
a) 3.5
b) 2
c) 49
 
4)
a)
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b) 0.25
c) 16
d) 5
 
5)
a)
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​b) 3
c) 2
d) 60
 
6)
a) 591
b) 236.4
c) 4.9

Working
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Questions
You can use a calculator for the questions in this quiz.
 
1) a is inversely proportional to b. When the value of a is 15, b is 4.
a) Form an equation for a in terms of b.
b) Find the value of a when b is 3.
c) Find the value of a when b is 10.
d) Find the value of b when a is 5.
 
2) c is inversely proportional to d. When the value of c is 25, d is 9.
a) Form an equation for c in terms of d.
b) Find the value of c when d is 3.
c) Find the value of d when c is 22.5.
d) Find the value of c when d is 0.5.
 
3) e is inversely proportional to f. When the value of e is 21, f is 14.
a) Find the value of e when f is 84.
b) Find the value of f when e is 147.
c) Find the value of e when f is 6.
 
4) g is inversely proportional to h. When the value of g is 640, h is 0.2.
a) Form an equation for g in terms of h.
b) Find the value of h when g is 512.
c) Find the value of g when h is 8.
d) Find the value of g when h is 25.6.
 
5)
Picture
When i is 4, j is 6.
a) Form an equation for i in terms of j.
b) Find the value of j when i is 8.
c) Find the value of i when j is 12.
d) Find the value of i when j is 0.4.
 
6)
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When m is 394, n is 0.3.

a) Find the value of m when n is 1/5.

b) Find the value of n when m is 0.5.

c) Find the value of m when n is 24. Give you answer to one decimal place.

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