A bat and ball cost $1.10, and the bat costs a dollar more than the ball.
How much does the ball cost?
Source: Thinking Fast and Slow by Daniel Kaheman, quoted in How To Make The World Add Up by Tim Harford.
blueprint brief – 10 June 2021
A bat and ball cost $1.10, and the bat costs a dollar more than the ball.
How much does the ball cost?
Source: Thinking Fast and Slow by Daniel Kaheman, quoted in How To Make The World Add Up by Tim Harford.
blueprint brief – 10 June 2021
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