The world's shortest IQ test will reveal how average your intelligence is in 3 questions

[EvilEyeFleegle]

IQ tests offer a formula that allows you to compare yourself to other people and see how average (or above average) your intelligence is.
The Cognitive Reflection Test (CRT) is dubbed the world’s shortest IQ test because it consists of just three questions. It assesses your ability to identify that a simple problem can actually be harder than it first appears. The quicker you do this, the more intelligent you appear to be.

Here are the three questions:​

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?

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?

 

[norwegen]

The ball costs 0.05 pounds.

100 machines would take 5 minutes to make 100 widgets.

47 days.

 

[occupied]

Shortest thread too.

 

[EvilEyeFleegle]

Shortest thread too.

Yeah, I forgot everyone here is a genius--with internet access~

 

[Cellblock2429]

IQ tests offer a formula that allows you to compare yourself to other people and see how average (or above average) your intelligence is.
The Cognitive Reflection Test (CRT) is dubbed the world’s shortest IQ test because it consists of just three questions. It assesses your ability to identify that a simple problem can actually be harder than it first appears. The quicker you do this, the more intelligent you appear to be.

Here are the three questions:​

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?

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?

/----/
1. Ohio
2. The average length of a movie.
3. Pancakes

 

[norwegen]

Yeah, I forgot everyone here is a genius--with internet access~

I was using my phone. Didn't look up anything.

 

[norwegen]

I'm kind of challenged technologically, and clumsy on a phone.

 

[EvilEyeFleegle]

Here is what a lot of people guess:​

1. 10 pence

2. 100 minutes

3. 24 days

These answers would be wrong.

When you're ready, scroll down for the correct answers, and how you get to them:

1. The ball would actually cost 0.05 pence

If the ball costs X, and the bat costs £1 more, then it will be:

X+£1

Therefore

Bat+ball=X + (X+1) =1.1

Thus

2X+1=1.1, and 2X=0.1

X= 0.05

2. It would take 5 minutes to make 100 widgets.

Five machines can make five widgets in five minutes; therefore one machine will make one widget in five minutes too.

Therefore if we have 100 machines all making widgets, they can make 100 widgets in five minutes.

3. It would take 47 days for the patch to cover half of the lake

If the patch doubles in size each day going forward, it would halve in size going backwards. So on day 47, the lake is half full.

In a survey of almost 3,500 people, 33 per cent got all three wrong, and 83 per cent missed at least one.

While this IQ test has its shortcomings – its brevity, and lack of variation in verbal and non-verbal reasoning - only 48 per cent of MIT students sampled were able to answer all three correctly.

 

[MarathonMike]

I have a shorter, simple IQ test. If you are an American citizen and you support the Democratic Party you are a dumb shit.

 

[Bleipriester]

The ball costs 0.05 pounds.

You can´t know. Maybe, there are different prices when you don´t purchase the set.

100 machines would take 5 minutes to make 100 widgets.

You can´t know. Maybe, there are different machines making different widgets.

47 days.

You can´t know. If the patch doesn´t grow from the middle of the lake, its growth will slow down every time it reaches an edge.

Your IQ is rated low.

 

[Dogmaphobe]

I am intelligent enough to realize that a three question "test" cannot possibly determine a person's intelligence.

 

[Oddball]

1) Giant robot
2) Pineapple
3) Titties

 

[BackAgain]

1) Giant robot
2) Pineapple
3) Titties

Brilliant!

 

[rightwinger]

The test assumes IQ is all math

 

[Dogmaphobe]

1) Giant robot
2) Pineapple
3) Titties

Is the answer "Giant robot titties shaped like pineapples"?

 

[norwegen]

The test assumes IQ is all math

I didn't use any math. No equations. Nothing. Math is not necessary.

 

[Bleipriester]

The test assumes IQ is all math

Wrong, as expected. You don´t need math to answer the second and third question.

 

[ThunderKiss1965]

/----/
1. Ohio
2. The average length of a movie.
3. Pancakes

I like waffles.

 

[Cellblock2429]

I like waffles.

/——-/ waffles are the official mascot of career politicians.

 

[norwegen]

Here's one that most people can't figure out (I don't think).

If an airplane that normally takes off at 140 mph is taking off on a giant treadmill that is going the opposite direction at 140 mph, how much more will the pilot have to rev the engine for the craft to take off?