Exam style questions - Hodder Plus Home

Exam questions: Unit C
3 The area of this triangle is 18.9 cm².
The height, AD, = 4.5 cm.
Calculate the base, BC, of the triangle.
4
B
A
D
D
C
C
6 Probability 2
Here is an exam question …
a Complete the table. [2]
Outcome Square Triangle Circle Star
Probability 0.2 0.35 0.3
b In a pack of cards, the cards are either red or blue.
There are three times as many blue cards as red
cards. What is the probability that a card drawn at
random is red [2]
5
A
5.2 cm
3 cm E 6 cm
ABCD is a parallelogram.
AE = 3 cm, EB = 6 cm and DE = 5.2 cm.
Calculate the following.
a The area of the parallelogram [2]
b The perimeter of the parallelogram [4]
8 cm
B
5 cm
… and its solution
a P(Circle) = 1 − (0.2 + 0.35 + 0.3)
= 1 − 0.85
= 0.15
b 3 parts blue, 1 part red.
P(red) = 1 4
Now try these exam questions
1 The probability of getting a 2 with a spinner is 3 5 .
What is the probability of not getting a 2 [1]
2 Coloured sweets are packed in bags of 20. There are
five different colours of sweet. The probabilities of
four colours are given in the table.
4 cm
3 cm
Colour Orange White Yellow Green Red
Probability 0.05 0.2 0.25 0.35
The two ends of this solid are parallelograms.
The remaining faces are all rectangles with
length 8 cm.
Calculate the following.
a The area of each of the parallelograms [2]
b The total surface area of the shape [4]
6 This triangle and this parallelogram have the
same area.
a Find the probability of picking a white sweet. [2]
b Find the probability of not picking a green
sweet. [1]
c How many sweets of each colour would you
expect to find in each bag [3]
More exam practice
1 Ahmed is counting vehicles passing a junction
between 8.00 a.m. and 8.30 a.m.
5.6 cm
8.5 cm 4.8 cm
Calculate the height of the parallelogram. [4]
Vehicle Cars Motorcycle Lorries
Frequency 72 15 28
Vehicle Vans Buses
Frequency 33 12
50 Revision Notes © Hodder Education 2011