Let’s start with a quiz: The total cost of a baseball bat and ball is $1.10. The cost of the bat is $1.00 more than the ball. How much does the ball cost? If you answered quickly, you probably thought the ball cost ten cents, but that’s incorrect. If you go back and think more carefully, you’ll realize that the correct answer is five cents (and $1.05 for the bat). Our quiz illustrates the difference between fast and slow thinking.... Read more