Cambridge International Mathematics

Assumed Knowledge (Geometry and graphs) 15

1

2

3 The graph shows the change in temperature at the ‘Weather

Centre’ from 6 am to 6 pm on a particular day.

a What was the temperature at:

i 6 am ii 6 pm iii noon?

b Over what period was the temperature:

i decreasing ii increasing?

c What was the maximum temperature and at what time

did it occur?

4 The number of children diagnosed with diabetes in a

large city over time is illustrated in the graph alongside.

a How many children were diagnosed in:

i 1996 ii 2006?

b Find the percentage increase in diagnosis of the

disease from:

i 1996 to 2006 ii 2000 to 2008.

EXERCISE G

012345678910

AB–

AB+

B–

B+

A–

A+

O–

O+

Days supply

BLOOD STOCKS

Blood group

The graph shows the world’s largest

rice growers and the quantity of rice

they harvested in.

What tonnage of rice was

harvested in:

Vietnam Burma in?

What was the total tonnage

harvested from the countries

included?

What percentage of the total rice

harvest was grown in China?

What percentage of rice does India

grow compared with China?

2007

2007

a

iii

b

c

d

6 am 9 am noon 3 pm 6 pm

15

20

25

30

35

(^40) Temperature (°C)
Time
94 96 98 00 02 04 06 08
30
40
50
60
70
80
Children with diabetes
Number diagnosed
year
The graph alongside shows the number of days’ supply of
blood for various blood groups available in a major hospital.
We can see that for blood type B+there is enough blood for
transfusions within the next 5 days of normal usage.
a How many blood groups are there?
b What blood type is in greatest supply?
c If supply for 2 or less days is ‘critical’, what blood types
are in critical supply?
d What percentage of the available blood is AB+or AB¡?
0
50¡000¡000
100¡000¡000
150¡000¡000
200¡000¡000
Country
World rice harvest
Metric tonnes of rice
production in 2007
ChinaChina
IndiaIndia
Indonesia
BangladeshVietnam
ThailandBurma
PhillipinesBrazilJapan
IGCSE01
cyan magenta yellow black
(^05255075950525507595)
100 100
(^05255075950525507595)
100 100
Y:\HAESE\IGCSE01\IG01_AT\015IGCSE01_AT.CDR Thursday, 13 November 2008 9:11:11 AM PETER
(Page included on the Student CD only)