Serial Reasoning Flashcards

A matrix shows shapes growing by adding one side each step: triangle, square, pentagon, ___. What comes next?

Answer: Hexagon

Each shape gains one side per step, so after a pentagon (5 sides) comes a hexagon (6 sides).

In a 3×3 grid, each row contains a large, medium, and small circle. The first row has large-medium-small, the second has medium-small-large. What order does the third row follow?

Answer: Small-large-medium

Each size shifts one position to the left each row, so the third row is small-large-medium.

A sequence shows: filled square, empty square, filled square, empty square, ___. What is the missing figure?

Answer: Filled square

The pattern alternates filled and empty squares, so the fifth figure is a filled square.

Each column in a matrix rotates a shape 90° clockwise. The top-left shows an arrow pointing up; the top-middle shows it pointing right. What does the top-right cell show?

Answer: Arrow pointing down

A 90° clockwise rotation from 'right' yields 'down'.

A row pattern shows: 1 dot, 3 dots, 5 dots, ___. How many dots come next?

Answer: 7 dots

The sequence increases by 2 each time (odd numbers), so after 5 comes 7.

In a 3×3 matrix, shading moves one cell to the right each row: row 1 shades column 1, row 2 shades column 2. Which cell is shaded in row 3?

Answer: Column 3

The shaded cell shifts one column to the right each row, landing on column 3 in row 3.

A series shows shapes that flip horizontally each step. Step 1 has a right-pointing arrow; step 2 has a left-pointing arrow; step 3 has ___.

Answer: Right-pointing arrow

The shape alternates between right and left with each horizontal flip, returning to right-pointing at step 3.