Free Printable 7A1_NTP

1.

The relationship between amount of rain and amount of water in the reservoir.

a)

Direct

b)

Inverse

c)

Both can be

2.

What is constant of proportionality of y to x?

a)

2

b)

-2

c)

1/2

d)

-1/2

3.

In the equation y = 14x, what is the constant of proportionality?

a)

14

b)

x

c)

y

d)

14x

4.

y is inversely proportional to x, which equation is correct?

a)

y = kx

b)

$y=\frac{x}{k}$

c)

a = xy

5.

y is directly proportional to x, which equation is correct?

a)

a = xy

b)

x = ky

c)

y = kx

6.

108 identical books have a mass of 30 kg. Find the mass of 150 such books.

a)

$\frac{150}{108}=\frac{30}{x},\ x=540$

b)

$\frac{108}{150}=\frac{30}{x},\ x=41.6$

c)

$108\times30=150\times x,\ x=21.6$

7.

'Eight men can build a bridge in 12 days. Find the time taken for 6 men to build the same bridge.'

This is an direct or inverse proportion problem?

a)

Direct proportion

b)

Inverse proportion

8.

8 men can build a bridge in 12 days. Find the time taken for 6 men to build the same bridge. Assume that all the men work at the same rate.

a)

$\frac{8}{6}=\frac{x}{12},\ x=16$

b)

$\frac{8}{6}=\frac{12}{x},\ x=9$

9.

Max eats 4 bars of chocolate everyday. If 6 bars contain 1800 calos, how many calos does Max consume each day?

a)

$\frac{4}{6}=\frac{x}{1800},\ x=1200$

b)

$\frac{4}{6}=\frac{1800}{x},\ x=2700$

10.

Y is inversely proportional to x and y=6 when x= 4. What is value of constant proportionality?

a)

3/2

b)

2/3

c)

24

7A1_NTP_Proportion

Total questions: 10

Worksheet time: 11mins

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