0
$\begingroup$

I found this on an online iq test, and am stuck on it:

8442, ?, 20.50.50.5, 4114, 410.251

I have no idea what the dots mean here, I also googled the test and someone says it is 9642 (which might or might not be the answer) without explanation.

Any ideas? Thanks!

Improve this question
$\endgroup$
4
  • $\begingroup$ from which online IQ test, exactly? $\endgroup$
    – Kevin L
    Commented Sep 7, 2018 at 14:00
  • 1
    $\begingroup$ @Kevin L : This one:hriqtests.com/insc-2017 $\endgroup$
    – z100
    Commented Sep 7, 2018 at 15:25
  • $\begingroup$ should we neglect zero's and dots? or Dot means multiplication? $\endgroup$
    – CR241
    Commented Sep 8, 2018 at 0:19
  • $\begingroup$ @CR241Not sure what dots mean, but definitely means something since for all the other questions there's not really any useless information. $\endgroup$
    – simonzack
    Commented Sep 8, 2018 at 4:50

1 Answer 1

Reset to default
6
$\begingroup$

It is 2124.

Treat the dot as a decimal point (as usual).

Insert spaces to distinguish numbers:

8 4 4 2
2 1 2 4
2 0.5 0.5 0.5
4 1 1 4
4 1 0.25 1

Explanation:

In the following row the 1st number is 1st divided by 2nd, 2nd is 2nd divided by 3rd, 3rd one is 3rd divided by 4th and 4th is 1st divided by 4th.

Improve this answer
$\endgroup$
1
  • $\begingroup$ Awesome work, would've never thought of that. Thanks! $\endgroup$
    – simonzack
    Commented Sep 11, 2018 at 2:21

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.