RBC Abstract and Logical Patterns 3

Question 1

A figure is reflected horizontally, then reflected vertically. Which transformation produces the same result as both reflections combined?

Accepted Answer

180° rotation

Answer

A horizontal reflection followed by a vertical reflection is equivalent to a 180° rotation about the center.

Question 2

In a logical pattern, every dark shape is large, and every large shape is a square. Which conclusion must be true?

Accepted Answer

Every dark shape is a square

Answer

If dark → large and large → square, then by transitivity dark → square.

Question 3

A number grid has rows where each value is 3 times the column number plus 2 times the row number. What is the value at row 3, column 4?

Accepted Answer

18

Answer

3×4 + 2×3 = 12 + 6 = 18.

Question 4

A sequence of figures shows a square losing one corner triangle each step: 4 triangles, 3 triangles, 2 triangles, 1 triangle, ___. What comes next?

Accepted Answer

0 triangles (plain square)

Answer

The count decreases by 1 each step, so after 1 triangle the next figure has 0 corner triangles — a plain square.

Question 5

Two overlapping shapes create a new region. The pattern shows: circle+square=rectangle, triangle+circle=oval. By the same logic, what does square+triangle equal?

Accepted Answer

Trapezoid

Answer

Combining a right-angle shape (square) with a triangular shape yields a trapezoid by analogy with the given pairings.

RBC - Online Assessment Practice Test

RBC - Online Assessment Practice Test

RBC Abstract and Logical Patterns 3