PIPEPREP AI
12 questions · 15 min

Paper Folding: The GAN Aptitude Test Section, Explained

Paper Folding is 12 questions in 15 minutes and the section applicants fear most. A sheet of paper is folded one or more times, a hole is punched through it, and you choose the pattern of holes you would see when it is unfolded. It is pure spatial visualization — and it is the most trainable section on the battery.

Questions
12
Time
15 min
Calculator
Not allowed

That is about 75 seconds per question. This section is one of six on the battery, which runs about 140 questions in roughly two hours — see the full GAN aptitude test breakdown for how the whole thing fits together.

What this section measures

Spatial reasoning: holding a shape in your head and transforming it. The trade rationale is real — reading isometric drawings, visualising a rolling offset, and seeing how an assembly goes together before you build it are all the same faculty.

It is only 12 questions, but it is the section where untrained applicants score closest to random. That also makes it the section where a couple of weeks of practice moves your ranking the most.

How to train it

Work backwards, one fold at a time

Do not try to picture the final unfolded sheet in one jump. Undo the last fold first: mirror the punched holes across that fold line. Then undo the fold before it, mirroring everything you now have. One reversal at a time is reliable; a single mental leap is not.

Count the holes before you look at the choices

A punch that passes through every layer produces one hole per layer. One fold means two layers and two holes; two folds means four; three folds means eight. Counting layers first often eliminates two or three answer choices instantly, before any visualisation.

The fold line is a mirror

Every hole reflects across the crease to the same perpendicular distance on the other side. A hole close to the fold stays close after unfolding; a hole near the outer edge lands near the opposite outer edge. Distance from the crease is the thing to watch, not the general area.

Fold real paper for the first week

This is the one section where physical practice beats screen practice outright. Fold a sheet, punch it with a pencil, and open it up. Half a dozen sheets and the transformation stops being abstract. After a week you will not need the paper.

Where applicants lose points

  • Forgetting that the punch goes through every layer, and answering with too few holes.
  • Mirroring across the wrong axis when the folds are diagonal or in different directions.
  • Answer choices that are correct in hole count but wrong in position — count first to narrow, then check placement carefully.

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Frequently asked

What is the paper folding section of the aptitude test?

Twelve questions in fifteen minutes. A sheet is shown being folded, then punched, and you select the pattern of holes that appears when the sheet is unfolded.

How do you get better at paper folding questions?

Work backwards one fold at a time rather than picturing the whole unfolding at once, and count layers to predict the hole count before looking at the choices. Physically folding and punching real paper for the first week makes the mental version far faster.

Is paper folding the hardest section?

It is the one most applicants name as hardest, mainly because it is unfamiliar rather than genuinely difficult. It is also the most trainable section on the battery, which makes it worth disproportionate practice time.

The other five sections

Ready to sit the whole thing? Take a free full-length practice test in the GAN format — timed sections, no calculator, instant scoring.

Drill Paper Folding until it is your best section

Reading about a section and scoring on it are different things. The app has ten full-length timed batteries plus dedicated paper folding drills, so test day is your eleventh run at it, not your first.

Download on the App Store

iPhone & iPad · free to download · 7-day free trial on Pro