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A Bat and Ball

image loading... by Bo Bennett, PhD, Social Scientist, Business Consutlant
posted Friday May 24, 2013 12:00 AM

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Bo Bennett, PhD

Social Scientist, Business Consutlant

About Bo Bennett, PhD

You can read my full bio at http://www.BoBennett.com.

Daniel Kahneman posed the following question to college students at Princeton and the University of Michigan: “A bat and ball cost $1.10. The bat costs $1 more than the ball. How much does the ball cost?” What is the answer?

If you are like more half of some very bright students polled, then you incorrectly answered $.10. At the very least, you almost certainly initially thought of $.10 as the answer, before you started to think more critically rather than let your "intuitive math skills" dictate the answer. This wasn't an exercise in math skills as the math involved is simple addition and subtraction. It was an experiment demonstrating how the mental shortcuts we take, often unconsciously, result in inaccurate information.

The answer is $.05. If the bat cost $1.05 and the ball cost $.05, then the bat cost $1.00 more than the ball ($1.05-$.05=$1.00).

Bo Bennett, PhD
Founder and Developer of http://www.YourWebEmpire.com — A modular, web-based platform designed to quickly and easily create multiple attractive and highly-functional web properties.

The Dr. Bo Show > http://www.TheDrBoShow.com
About Me > http://www.bobennett.com
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