A bat and a ball cost £1.10 in total. The bat costs £1.00 more than the ball. How much does the ball cost?
Take as much time as you need…
If you said 10p, you’re in good company. More than 50% of students at top American universities also gave the same, wrong answer. (Well done, if you said 5p!)
What this little brain teaser illustrates was explained during our latest Masterclass at the Groucho Club in Soho. The morning-long session focused on Thoughtscape™, the revolutionary new research technique pioneered by HPS.