Thinking Skills: Critical Thinking and Problem Solving

3.12 Making choices and decisions 125

4    The country of Danotia prints stamps in

the following denominations:

1¢, 2¢, 5¢, 9¢, 13¢, 22¢, 36¢, 50¢,

$1.00, $5.00

A mail order company sends out equal

numbers of three sizes of package, which

incur postal charges of 34¢, 67¢ and

$1.43. They want to stock as few different

denominations of stamp as possible (but

not only 1¢ stamps as sticking lots of

these on envelopes would be a nuisance!).

Which ones should they stock?

Answers and comments are on page 323.

The table shows how the choices can

be made. Students must choose one

subject from each column. The fourth

subject may come from any column.

1 2 3

geography French history

technology German religious studies

art physical education

music Latin

Which of the following combinations would

not be allowable?

A French, geography, physical

education, art

B French, German, Latin, music

C technology, German, art, history

D French, German, geography, music

E geography, music, French, religious

studies