NNAT Pattern Completion 3 — Questions and Answers
Question 1: A 3x3 matrix has large shapes in the top row, medium shapes in the middle row, and small shapes in the bottom row. The bottom-right cell contains a medium pentagon. Which piece correctly replaces it?
- Large pentagon
- Small pentagon (Correct answer)
- Small hexagon
- Medium triangle
Correct answer: Small pentagon
The bottom row rule requires small shapes, so the correct piece is a small pentagon.
Question 2: Each column in a pattern grid contains exactly one black shape, one gray shape, and one white shape. The third column already has a black square on top and a gray circle in the middle. What must appear at the bottom?
- Black triangle
- Gray square
- White shape (Correct answer)
- Gray triangle
Correct answer: White shape
Since black and gray are taken, the bottom cell must be a white shape to satisfy the one-per-shade rule.
Question 3: A figure shows a large square with a pattern hole in its lower-left corner. Four answer options show differently sized and shaped pieces. The hole is a right-angled notch. Which piece fits?
- A triangle pointing inward
- A small square piece (Correct answer)
- A circle quarter
- A large rectangle
Correct answer: A small square piece
A right-angled notch requires a small square piece with matching corners to fill the gap seamlessly.
Question 4: In a pattern, each shape gains one side per step: triangle (3 sides) → square (4 sides) → pentagon (5 sides) → ___. What comes next?
- Pentagon
- Hexagon (Correct answer)
- Circle
- Triangle
Correct answer: Hexagon
Adding one side to a pentagon (5) produces a hexagon (6 sides).
Question 5: A 3x3 matrix uses only X and O symbols. Each row and each column must contain exactly two X's and one O. The middle row has X, O, ___. The right column already has X at the top. What fills the blank?
- O
- X (Correct answer)
- Either X or O
- The pattern cannot be determined
Correct answer: X
The middle row needs two X's; with one X and one O placed, the missing symbol must be X.
Question 6: A pattern shows shapes that alternate between pointing left and pointing right. The sequence: right-arrow, left-arrow, right-arrow, ___. A second rule makes every third shape larger. What is the fourth shape?
- Small left-arrow
- Large left-arrow (Correct answer)
- Small right-arrow
- Large right-arrow
Correct answer: Large left-arrow
The fourth position alternates to left-arrow, and being the next multiple-of-3 position it must be large.
Question 7: A rectangular tile has an internal diagonal line running from the top-left corner to the bottom-right corner. The tile is rotated 180°. Where does the diagonal line now run?
- Top-left to bottom-right (unchanged) (Correct answer)
- Top-right to bottom-left
- Horizontally across the middle
- It disappears
Correct answer: Top-left to bottom-right (unchanged)
A 180° rotation of a tile with a top-left to bottom-right diagonal produces the same diagonal because both endpoints swap positions symmetrically.
NNAT Pattern Completion 3
A 3x3 matrix has large shapes in the top row, medium shapes in the middle row, and small shapes in the bottom row.
The bottom-right cell contains a medium pentagon.
Which piece correctly replaces it?