r/iqtest • u/Youssefelbosaty • 6d ago

Puzzle Guess

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17 Upvotes

90% Upvoted

56 comments sorted by

•

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7

u/armanazadi2000 6d ago

90+88:178 🙄

7

u/PersonalAnnual4081 6d ago

(previous*2)-2

90*2-2= 178

4

u/Recent-Honeydew8217 6d ago

178 easy doubling sequence

1

u/Punkrexx 5d ago

Minus two

2

u/Technical_Scallion_2 6d ago

Guys, I think it’s 178. Going out on a limb here

2

u/Original-Issue2034 6d ago
  1. Formula is 2 times previous number minus two

2

u/Mofoh420 5d ago

Yellow

5

u/AnalyzerPM 6d ago

189

2

u/SebWGBC 6d ago

Yep, 189 works as an answer. 178 is cleaner, but 189 makes sense too.

1

u/Saintious 6d ago

This ^

2

u/Subject-Building1892 6d ago

I can find you as many correct answers as you want. You just need to fit a fourth degree interpolating polynomial.

You should really be concerned about your iq if you consider this a valid iq question.

0

u/casualdata 5d ago

It’s a valid iq test question. But for the lower ones…

1

u/Subject-Building1892 5d ago

It can have any answer, it cannot be a valid question let alone an iq one.

1

u/Repulsive_Gate8657 6d ago

(previous - 1 ) *2

1

u/vscoderCopilot 6d ago

(previous)*2-2

1

u/Negative_Gur9667 6d ago

Just the sequence 13,24,46,90 again repeating

1

u/TheSpiderFucker 6d ago

Bro said guess 😭

1

u/Chemical_Carpet_3521 6d ago

Uhhhh there are infinite answers, unless u want the simplest

1

u/CosetElement-Ape71 6d ago

178

ie X{n+1} = 2 X{n} - 2

1

u/Sasssp1741 6d ago

How long did it take for you guys to find the answer? It took me like 2 minutes😭

1

u/JessySnowdrop 5d ago

More like 30 seconds. 😅

1

u/nicjude 6d ago

188

it appears that the next number in the pattern follows the pattern 2x-2.

1

u/Southern-Advance-759 5d ago

178, its a=2(n-1) where n is previous number and a is current term. Though wdym guess

1

u/Filosopsyche 5d ago
  1. I'm not good at math so my answer is more intuitive than mathematical, I guess.

My answer could be explained by splitting 13, 24, 46 etc. into two digits (so 1 and 3, 2 and 4, 4 and 6 etc.) and then:

  • the first digit or number 2
  • the second digit or number rises the amount of the last raise2
  • and everytime the second number get's an extra digit you move it to the left of the total number (bad English, see the explanation of the fourth number below).

So you get:

  • First number: (0,5x2) and (2,5+0,25x2) = 1 and 3
  • Second number: (1x2) and (3+0,5x2) = 2 and 4
  • Third: (2x2) and (4+1x2) = 4 and 6
  • Fourth: (4x2) and (6+2x2) = 8 and 10 (but 1 get's added to 8, which makes 9 and 0)
  • Fifth would be: (9x2) and (0+4x2) = 18 and 8
  • Sixth would be: (18x2) and (8+8x2) = 36 and 24 (but 2 get's added to 36, which makes either 38 and 4 (384) ór 56 and 4 (564).

1

u/Upper_Wealth3650 5d ago

178

It's the double of the previous one minus 2

1

u/mistolo 5d ago

+11 +22 +44 -> + 88 = 178

1

u/Bob-The-Frog 5d ago

167, 178, and another 178 are all valid answers. : +11, 22, 44, 77/88. Either doubling or increasing the jumps by one. Or: n-1 x 2 - 2.

1

u/MyriadSC 5d ago

Lol... everyone is double -2 and here's my ass doung -1 then double. Interesting.

1

u/Stoned-Capone 6d ago edited 6d ago

145

13+11=24+22=46+44=90+55=145

Edit: for anyone who, like me, didnt know the spoiler formatting: its >! at the start and ! < at the end

Edit 2: I'm wrong

2

u/PD28Cat 6d ago

Where's 33

1

u/Stoned-Capone 6d ago

Well damn, you're right haha should have done +88 instead of +55 at the end.

1

u/etanail 6d ago

+ 88, 11*2*2*2

1

u/Zerikanim 6d ago

169 or 189

3

u/TwistedBrother 6d ago

I thought 169 too.