Thinking Skills: Critical Thinking and Problem Solving

3.3 Selecting and using information 89

3    The table below shows the finishing

positions in the Contrey handball league.

The five teams play each other once each.

Three points are awarded for a win and one

for each team in a drawn match.

Team Points

Alency 8

Bresville 7

Argest 5

Euroland 4

Saint Croix 2

How many of the games were drawn?

4    A carpenter is fitting some bookcases to

an alcove, using as much of the space

as possible from floor to ceiling, a height

of 2.5 m. The books to be fitted into the

shelves are 210 mm high and a gap of

at least 30 mm is necessary above each

book so they can be removed. The shelves

are 20 mm thick. The alcove is 1.2 m

wide. The bottom shelf should not be less

than 300 mm from the ground, as the

house-owner cannot bend down easily.

How many shelves can be fitted into the

alcove?

Answers and comments are on page 317.

1    Using the data in the first example above

(tabular information, page 86), draw a

graph of an appropriate type showing the

proportion of types of exercise regularly

taken by the 16–20-year-olds in the sample.

2    The pie charts illustrate the change that

the introduction of the CD in 1985 had on

the recorded-music market. Total annual

sales of all types of recording in 1984

were 170 million and in 1994 they were

234 million.

Cassettes

23% Vinyl

singles

Vinyl 44%

LPs

33%

1984

Vinyl

LPs

2% Cassettes24%

CDs

Vinyl 48%

singles

26%

1994

What, approximately, happened to the

actual annual sales of vinyl singles

between 1984 and 1994?

A They fell by 14 million.

B They fell by 5 million.

C They were unchanged.

D They rose by 17 million.

E They rose by 64 million.

End-of-chapter assignments