**Harvard students are**, according to statements and statistics, smarter than others. So for these so-called geniuses, a simple question of logic should not pose a problem, and yet…

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Most students at the** prestigious university in Massachusetts **were not able to find the right answer to this problem:

A baseball bat and a ball cost £1.10. The bat costs a pound more than the ball. How much does the ball cost?

**And the answer is…**

If you answered 10 cents, then you made the **same mistake most Harvard students did**. They almost all answered 10 cents even though the answer is 5 cents. Why?

Daniel Kahneman, a specialist in behavioural economics, explained to the Business Insider website that bad logic had been used by the students, and probably also by some of the readers of this article:

Right away people will answer that the ball costs 10 cents. This is called an intuitive answer - it seems to be the right one, but it is in fact wrong. If the ball costs 10 cents, then the bat would cost £1.10 and the total would be £1.20.

If you still don’t understand the trick, this is how it breaks down. The bat and the ball cost a total of £1.10. Knowing that the bat costs £1 more than the ball, the ball is sold at the price of 5p and the bat at £1.05. **Thus we’re respecting the difference of one pound: 0.05 + 1.05 = 1.10!**

**More than half of Harvard students were wrong**

This question was put to thousands of university students and more than half of **Harvard, MIT and Princeton students got it wrong**. This percentage reached more than** 80% in less prestigious universities**.

The problem with this equation is that people are too likely to trust and follow their first intuition when more thought actually needs to be put into it.