ugh now they have plopped down a math problem (a word problem, which makes it even worse, I hate those!!) into psychology.

"A bat and a ball together cost 110 cents.
The bat costs 100 cents more than the ball.
How much does the ball cost?"

Of course, I got the wrong answer, because I hate math, and was therefore unable to override my intuition with this. I said 10 cents. Wrong!! I asked h, who loves math, and h said correctly "5 cents".

It's still interesting, but they better not stick any more math stuffs in this chapter! ha!