Exam style questions - Hodder Plus Home

3 Will carried out a survey on people’s favourite
flavour of crisps.
He asked 200 people. These are his results.
Flavour Plain Salt &
vinegar
Number
of
people
Cheese
& onion
Other
35 72 38
a How many people chose cheese & onion
flavour crisps
b Estimate the experimental probability of
someone choosing salt & vinegar. [2]
4 A certain type of moth on a tropical island has
either two spots, three spots or four spots on its
wings. The probability that a moth has two spots
is 0.3. In a survey conducted by biologists, 1000
moths were examined and 420 moths with three
spots were found. What is the probability of a
moth, caught at random, having four spots [4]
Now try these exam questions
1 A rectangle has a length of 4.3 cm and a width of
2.6 cm.
Work out the following.
a The perimeter of the rectangle [2]
b The area of the rectangle [2]
2 a On centimetre squared paper, draw two
different rectangles which each have an area
of 12 cm 2 . [2]
b Work out the perimeter of each of your
rectangles. [2]
More exam practice
1 Find the perimeter and area of each of these shapes.
a
3 Perimeter, area
and volume 1
Here is an exam question ...
a Find the perimeter of this rectangle. [2]
b Find the area of this rectangle. [2]
b
7 cm
4 cm
... and its solution
a 7 + 4 + 7 + 4 = 22 cm
b 7 × 4 = 28 cm 2
[4]
© Hodder Education 2011 Unit C
47