Cognitive Psychology: Connecting Mind, Research and Everyday Experience, 3rd Edition

356 • CHAPTER 12 Problem Solving

●FIGURE 12.27 Solution to the chain problem.

All the links in one chain are cut and separated

(3 cuts @ 2 cents = 6 cents). The separated links

are then used to connect the other three pieces

and then closed (3 closings @ 3 cents = 9 cents).

Total = 15 cents.

●FIGURE 12.28 Solution to the

candle problem.

Solution: The length of the line x is r.

x

r

●FIGURE 12.25 Solution to the circle

problem. Note that the length of x is the

same as the radius, r, because x and r are

both diagonals of the rectangle.

●FIGURE 12.26

Solution to the triangle

problem. Arrows indicate

movement; colored

circles indicate new

positions.

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