114 Unit 3 Problem solving: basic skills
If somebody walks from X to Y, in how
many, and what, different orders will they
see the flagpoles? (Exclude places where
one is exactly hidden behind another.)
4 Our local café has an unusual clock which
is upside down. The numbers 3 and 9 are
in their conventional places, but 6 and 12
are interchanged. What time is it when the
hands are positioned as in the clock face
shown?
A 2.45 B 7.15 C 8.45
D 10.15 E 10.45
1 Fred wants to write the letters NSRFC
on his forehead for this afternoon’s
Northampton Saints Rugby Football Club
match. He does it with face paints while
looking in a mirror. What should it look like
in the mirror?
2 Draw a simple picture of your house or
another building with which you are familiar
as seen from above and from the front.
How much can you tell about the side and
back views from your drawings?
3 Outside the Diorama hotel there is a set
of flagpoles, as shown in the drawing. The
flagpoles are all painted different colours
(red, blue, yellow, green, orange, white).
XY
RY O
BG W
When they are seen from position X, they are
seen in the order (from left to right): R B Y O
G W.
End-of-chapter assignments
• We have seen the importance of spatial
reasoning in many occupations and how
problem-solving questions can test this.
• The value of practice in solving this type of
question has been emphasised.
• This chapter introduced questions that are
backward in that the answer must be found
from the options rather than just from the
information and the question.
• The use of elimination in answering such
questions was illustrated.
Summary