Area 4 of 6 · 5 scored questions
Logic
A short problem in plain language: who arrived first, what follows if a condition is true, which box has the wrong label. The answer comes only from the information given.
- 5 of the 37 scored questions
- plain language
- no prior knowledge
What it measures
What logic asks of you
It measures whether your reasoning follows the rules, without depending on what you already know about the world.
- 1
Use only what was stated
The right conclusion follows from the premises. What seems likely in real life doesn’t count.
- 2
Organize the information
Put people in a line, days on a calendar or objects in boxes, and see what’s left.
- 3
Distrust the shortcut
Some options sound reasonable but don’t follow from the premises. That’s where the test tells people apart.
During the test
What helps with logic
- Reread each premise and note in your head what it rules out, not just what it states.
- In ordering problems, build the line gradually, one piece of information at a time.
- Made-up words appear on purpose: they keep you from answering by common sense.
What the research says
Where this area comes from
Deductive reasoning
Ordering, condition and exclusion problems are classic ways of measuring deduction. In the test, they come in short sentences with no difficult vocabulary.
A single solution
Every problem in the bank is checked to have just one solution. For the training ones, this is verified by brute force: the code tests every combination.
We don’t give an IQ per area: with only a few questions in each, the error would be too large. The report shows how many you got right and whether the area came out above, in line with, or below your overall result.
Questions
Questions about this area
Are there trick questions in logic?
Not in the riddle sense. We don’t use viral riddles, because anyone who already knows them gets them right without reasoning. The difficulty comes from putting the information together.
Do I need to know formal logic?
No. No question asks for symbols or textbook rules. Just read carefully and follow what was stated.
The 6 areas
Other areas of the test
-
Matrices
Find the rule that organizes a grid of shapes and apply it to the missing piece.
See the area -
Series
Find the pattern in a sequence of numbers or letters and continue it.
See the area -
Rotation
Rotate shapes mentally and recognize the same piece in another position.
See the area -
Verbal
Relationships between words and ideas: analogies, categories and syllogisms.
See the area -
Memory
Hold and use information for a few seconds: digit sequences and recall.
See the area
Ready to see how you reason?
Start now. At the end, your estimated IQ with the 95% range stays in your member area.
Start the testTaking the test is free · IQNorth is an educational reasoning test: the result is an estimate, with a margin of error, for personal and educational use.

