NNAT Serial Reasoning 3 — Questions and Answers
Question 1: Each frame in a serial pattern shows the same shape shrinking by one size step. Frame 1 shows a large circle, frame 2 shows a medium circle. What does frame 4 show?
- An extra-small circle (Correct answer)
- A large circle
- A medium circle
- A tiny square
Correct answer: An extra-small circle
Each frame reduces the size by one step: large → medium → small → extra-small, so frame 4 is extra-small.
Question 2: In a 3×3 matrix, shapes in each column grow darker from top to bottom: white on top, gray in the middle, ___ at the bottom. What shade completes the column?
- Black (Correct answer)
- White
- Gray
- Striped
Correct answer: Black
The column darkens progressively from white to gray to black.
Question 3: A serial pattern alternates: 1 shape, 1 shape with a line through it, 2 shapes, 2 shapes with a line, ___. What appears next?
- 3 shapes (Correct answer)
- 1 shape
- 2 shapes with two lines
- 3 shapes with a line
Correct answer: 3 shapes
Each plain/crossed pair increases the count by 1, so the next plain group contains 3 shapes.
Question 4: A right-pointing arrow rotates 90° counterclockwise at each step. Starting at step 1 pointing right, which direction does it point at step 3?
- Left (Correct answer)
- Down
- Right
- Up
Correct answer: Left
Right → up (step 2) → left (step 3), so at step 3 the arrow points left.
Question 5: A shading pattern cycles through three sections of a shape: top, middle, bottom, top, middle, ___. If step 1 has the top shaded, which section is shaded at step 5?
- Middle (Correct answer)
- Top
- Bottom
- All sections
Correct answer: Middle
The 3-step cycle gives step 5 the same phase as step 2 (middle), because 5 mod 3 = 2.
Question 6: In a 3×3 matrix, the cell at row 3, column 2 is determined by the row's shape type and the column's fill color. Row 3 uses triangles; column 2 uses gray fill. What is in that cell?
- Gray triangle (Correct answer)
- White circle
- Black square
- Gray square
Correct answer: Gray triangle
Row 3 = triangle shape, column 2 = gray fill, so the cell contains a gray triangle.
Question 7: A matrix pattern shows that each shape in column 3 combines the outline from column 1 with the interior fill from column 2. If column 1 has a circle outline and column 2 has a black fill, what appears in column 3?
- A solid black circle (Correct answer)
- An empty circle
- A black square
- A gray triangle
Correct answer: A solid black circle
Combining the circle outline from column 1 with the black fill from column 2 produces a solid black circle.
NNAT Serial Reasoning 3
Each frame in a serial pattern shows the same shape shrinking by one size step.
Frame 1 shows a large circle, frame 2 shows a medium circle.
What does frame 4 show?