Page 237 - Mind Games The Aging Brain and How to Keep it Healthy

Enjoy Your Ageless Mental Agility • 221

?
15. a b c d

a b
?
16
c d

? a b
17.
c d

?
, ,
18. a b c d

?
390625, 625, 25,
19.

a b
20. ?

c d

After the 10 minutes have elapsed, check your answers
at the end of this chapter in the “Answers” section. Record
the number correct. After you have a chance to practice in-
ductive-reasoning and spatial-relationship skills, take the
posttest at the end of this chapter.

MENTAL AGILITY EXERCISES
Inductive Reasoning
One of the key questions regarding intelligence or high
mental ability is whether a person can recognize patterns