The holes in an unfolded sheet are always arranged:

Symmetrically about the fold lines

The correct way to solve a paper-folding question is to:

Unfold one step at a time, reflecting the holes

Paper Folding — 8 Aptitude Questions and Answers with Explanations

Paper Folding — Questions and Answers

Paper Folding shows a sheet folded one or more times and punched, then asks how the holes appear when it is unfolded. The arithmetic is simple and reliable: each fold doubles the number of holes, and the holes are always arranged symmetrically about every fold line. Unfold mentally one step at a time, reflecting the holes at each stage.

8 solved questionsNon Verbal ReasoningFree · no signup

Paper Folding— Concepts, Formulas & Shortcuts

Each fold doubles the number of holes: 1 fold → 2, 2 folds → 4, 3 folds → 8.
With p punches and f folds, the opened sheet shows p × 2^f holes.
Holes are always symmetric about every fold line.
Unfold one step at a time, reflecting the existing holes across the last fold made.
A hole punched exactly ON a fold line does NOT double.
The final pattern always has at least as much symmetry as the folding sequence.

Paper Folding Practice Questions with Answers

Attempt each question first, then open the explanation. All 8 questions below are free to read and require no signup.

Q1.A sheet is folded once and punched once. On unfolding, the number of holes is:
Easy
- A1
- B2
- C3
- D4
+Show Answer & Explanation
Answer: B. 2
Explanation: One fold doubles the punch: 1 × 2 = 2 holes.
Paper Folding question 1 of 8
Q2.A sheet folded twice and punched once shows how many holes when opened?
Easy
- A2
- B3
- C4
- D8
+Show Answer & Explanation
Answer: C. 4
Explanation: 1 × 2² = 4 holes.
Paper Folding question 2 of 8
Q3.A sheet folded three times and punched once shows:
Moderate
- A4 holes
- B6 holes
- C8 holes
- D16 holes
+Show Answer & Explanation
Answer: C. 8 holes
Explanation: 1 × 2³ = 8 holes.
Paper Folding question 3 of 8
Q4.A sheet folded twice and punched twice shows:
Moderate
- A4 holes
- B6 holes
- C8 holes
- D16 holes
+Show Answer & Explanation
Answer: C. 8 holes
Explanation: 2 punches × 2² = 8 holes.
Paper Folding question 4 of 8
Q5.The holes in an unfolded sheet are always arranged:
Easy
- ARandomly
- BSymmetrically about the fold lines
- CIn a straight line
- DIn one corner
+Show Answer & Explanation
Answer: B. Symmetrically about the fold lines
Explanation: Folding guarantees that each punch reflects across every crease.
Paper Folding question 5 of 8
Q6.A punch made exactly on the fold line produces, on unfolding:
Difficult
- ATwo holes
- BOne hole
- CFour holes
- DNo hole
+Show Answer & Explanation
Answer: B. One hole
Explanation: A hole on the crease is shared by both halves, so it does not double.
Paper Folding question 6 of 8
Q7.If an opened sheet shows 16 holes from a single punch, the number of folds was:
Difficult
- A2
- B3
- C4
- D8
+Show Answer & Explanation
Answer: C. 4
Explanation: 2^f = 16 gives f = 4 folds.
Paper Folding question 7 of 8
Q8.The correct way to solve a paper-folding question is to:
Moderate
- AGuess the symmetry
- BUnfold one step at a time, reflecting the holes
- CCount the options
- DFold further
+Show Answer & Explanation
Answer: B. Unfold one step at a time, reflecting the holes
Explanation: Reversing the folds one at a time, reflecting at each stage, reproduces the exact pattern.
Paper Folding question 8 of 8

Paper Folding — Frequently Asked Questions

How many holes appear if a sheet is folded twice and punched once?+

Four. Each fold doubles the count, so one punch through two folds gives 1 × 2² = 4 holes.

What happens if the punch lands on the fold line?+

It does not double. A hole made exactly on the crease produces a single hole on unfolding, which is a standard trap in exam questions.

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