# Little (IQ) help!

**URL:** <https://boards.straightdope.com/t/little-iq-help/308203>\
**Category:** Factual Questions\
**Created:** [June 14, 2005, 12:38pm UTC](https://boards.straightdope.com/t/little-iq-help/308203 "2005-06-14T12:38:05Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![SiXSwordS](https://avatars.discourse-cdn.com/v4/letter/s/49beb7/32.png) [@SiXSwordS](https://boards.straightdope.com/u/SiXSwordS)\
**Post date:** [June 14, 2005, 12:38pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/1 "2005-06-14T12:38:05Z")

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I recently took one of those online IQ tests. (My numerologically interpretted score was 5.) There was one question that I still can’t figure out. I have prepared my ego for humiliation, so break out your scorn dripping roll eyes and help fight a little ignorance.

The question:  
Johnny likes 400 but he doesn’t like 300. He likes 100 but not 99. He likes 3600 but not 3700.  
Which number **will** Johnny like?  
[list=a][li]900[_]1000[_]11001200 [/list][/li]  
I think I know the answer (I couldn’t wade through the ad bog to get to the guide) but, oddly enough, I don’t know why.

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**Author:** ![One\_And\_Only\_Wanderers](https://avatars.discourse-cdn.com/v4/letter/o/838e76/32.png) [@One\_And\_Only\_Wanderers](https://boards.straightdope.com/u/One_And_Only_Wanderers)\
**Post date:** [June 14, 2005, 12:52pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/2 "2005-06-14T12:52:41Z")

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> [@SiXSwordS](#):
>
> I recently took one of those online IQ tests. (My numerologically interpretted score was 5.) There was one question that I still can’t figure out. I have prepared my ego for humiliation, so break out your scorn dripping roll eyes and help fight a little ignorance.
> 
> The question:  
> Johnny likes 400 but he doesn’t like 300. He likes 100 but not 99. He likes 3600 but not 3700.  
> Which number **will** Johnny like?  
> [list=a][li]900[_]1000[_]1100[\*]1200 [/list][/li]  
> I think I know the answer (I couldn’t wade through the ad bog to get to the guide) but, oddly enough, I don’t know why.

900

400 = 20 \* 20  
100 = 10 \* 10  
3600 = 60 \* 60

and of course 900 = 30\*30

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**Author:** ![Jman](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jman/32/4416_2.png) [@Jman](https://boards.straightdope.com/u/Jman)\
**Post date:** [June 14, 2005, 1:57pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/3 "2005-06-14T13:57:56Z")

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Yup…

saw the 400 and 100 and said “he likes squares.”

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**Author:** ![SiXSwordS](https://avatars.discourse-cdn.com/v4/letter/s/49beb7/32.png) [@SiXSwordS](https://boards.straightdope.com/u/SiXSwordS)\
**Post date:** [June 14, 2005, 2:30pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/4 "2005-06-14T14:30:05Z")

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I’ve always been surprised that I can even pass those tests.  
I score well on the verbal, but of the math always throws me. I don’t seem to recognize numerical relationships unless they’re spelled out. (NPI)

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**Author:** ![UncleBeer](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@UncleBeer](https://boards.straightdope.com/u/UncleBeer)\
**Post date:** [June 14, 2005, 3:11pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/5 "2005-06-14T15:11:40Z")

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> [@](#):
>
> (My numerologically interpretted score was 5.)

What the heck does that mean? Somebody is applying [numerology](http://www.skepdic.com/numology.html) to Intelligence Quotients now?

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**Author:** ![critter42](https://avatars.discourse-cdn.com/v4/letter/c/7ba0ec/32.png) [@critter42](https://boards.straightdope.com/u/critter42)\
**Post date:** [June 14, 2005, 4:03pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/6 "2005-06-14T16:03:59Z")

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> [@UncleBeer](#):
>
> What the heck does that mean? Somebody is applying [numerology](http://www.skepdic.com/numology.html) to Intelligence Quotients now?

Why not? One’s about as useful as the other, so why not combine the two? 🙂

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**Author:** ![Mathochist](https://avatars.discourse-cdn.com/v4/letter/m/c89c15/32.png) [@Mathochist](https://boards.straightdope.com/u/Mathochist)\
**Post date:** [June 14, 2005, 6:48pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/7 "2005-06-14T18:48:30Z")

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> [@Jman](#):
>
> Yup…
> 
> saw the 400 and 100 and said “he likes squares.”

They’re hip.

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**Author:** ![Anvil\_Soup](https://avatars.discourse-cdn.com/v4/letter/a/cab0a1/32.png) [@Anvil\_Soup](https://boards.straightdope.com/u/Anvil_Soup)\
**Post date:** [June 14, 2005, 8:22pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/8 "2005-06-14T20:22:39Z")

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Perhaps Johnny likes a number X if and only if X mod 13 \> 8, in which case **b** is the correct answer.

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**Author:** ![Mathochist](https://avatars.discourse-cdn.com/v4/letter/m/c89c15/32.png) [@Mathochist](https://boards.straightdope.com/u/Mathochist)\
**Post date:** [June 14, 2005, 10:54pm UTC](https://boards.straightdope.com/t/little-iq-help/308203/9 "2005-06-14T22:54:07Z")

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> [@Anvil Soup](#):
>
> Perhaps Johnny likes a number X if and only if X mod 13 \> 8, in which case **b** is the correct answer.

Perhaps Johnny likes a number X if and only if X is on a certain list. :rolleyes:
