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'World's shortest IQ test' reveals your intelligence in just three questions

Home> News

Published 15:51 10 Jul 2024 GMT+1

'World's shortest IQ test' reveals your intelligence in just three questions

Find out how smart you are in seconds.

Rikki Loftus

Rikki Loftus

The world’s shortest IQ test could reveal how smart you are in a matter of seconds.

The Cognitive Reflection Test (CRT) is a simple quiz consisting of just three questions and the quicker you answer them, the more intelligent you are.

The test, which was created by a professor at Massachusetts Institute of Technology (MIT), is designed to measure a person’s ability to override an incorrect ‘gut’ response and reflect to find the right answer.

It assesses how you fare with solving a simple problem that's actually harder than it first appears.

It also offers a formula so that you can compare yourself to other people and see how your intelligence matches up.

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TikToker Josh, @_notjustjosh, uploaded a video detailing the test where he claimed it can determine whether you’re smarter than 80% of the population.

The simple quiz tests your intelligence (JW LTD/Getty)
The simple quiz tests your intelligence (JW LTD/Getty)

The three questions that you need to answer in order to determine your intelligence, according to the quiz, are as follows:

1. 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?

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2. If it takes five machines five minutes to make five widgets, how long would it take 100 machines to make 100 widgets?

3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?

The Cognitive Reflection Test has just three questions (TikTok/@_notjustjosh)
The Cognitive Reflection Test has just three questions (TikTok/@_notjustjosh)

Taking to Reddit to share their answers, the cognitive test appears to have left a lot of people stumped.

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One user wrote: “I understand all of them except the bat and ball one. I know the ball isn't 10 cents but I don't know why.”

Another person struggled with the first question, writing: “So apparently the correct answer for the ball and bat is 5 cents? HOW? they better not be including tax b/c that changes EVERYWHERE.”

The test can determine whether you're smarter than 80% of the population (Yuichiro Chino/Getty)
The test can determine whether you're smarter than 80% of the population (Yuichiro Chino/Getty)

Also figuring out the bat and ball question, a third user said: “It broke my brain trying to figure that out, even though I know the original answer is 5c. The math just didn't work!”

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A fourth added: “I think I always get these wrong. They seem to involve some amount of math I can’t figure out how to do.”

Meanwhile, a fifth person came up with an easier way to get the answers, adding: “Google search is your friend....”

Featured Image Credit: Yuichiro Chino/Getty/TikTok/@_notjustjosh
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