RBC Abstract and Logical Patterns 2 — Questions and Answers
Question 1: A series of shapes alternates: circle, square, triangle, circle, square, ___. What comes next?
- Circle
- Triangle (Correct answer)
- Square
- Pentagon
Correct answer: Triangle
The pattern repeats in a cycle of three (circle, square, triangle), so the 6th item is triangle.
Question 2: Each figure in a row has one more side than the previous. The row starts with a triangle. What is the 5th figure?
- Hexagon (Correct answer)
- Heptagon
- Pentagon
- Octagon
Correct answer: Hexagon
Triangle (3 sides) → 4 → 5 → 6 sides = hexagon at position 5.
Question 3: In a 3×3 matrix, each row contains a black circle, a white circle, and a grey circle in some order. The first row is black-white-grey and the second row is white-grey-black. What is the correct order for the third row?
- Grey-black-white (Correct answer)
- Black-grey-white
- Grey-white-black
- White-black-grey
Correct answer: Grey-black-white
Each column must contain all three shades, so the third row fills the remaining shade in each column: grey-black-white.
Question 4: A pattern shows numbers: 2, 4, 8, 16, ___. Which rule describes this sequence?
- Add 2 each time
- Multiply by 3 each time
- Multiply by 2 each time (Correct answer)
- Add 6 each time
Correct answer: Multiply by 2 each time
Each term is double the previous (2×2=4, 4×2=8, 8×2=16), so the rule is multiply by 2.
Question 5: Shapes in a sequence rotate 90° clockwise with each step. If the arrow points right in step 1, where does it point in step 5?
- Up
- Down
- Left
- Right (Correct answer)
Correct answer: Right
Four 90° rotations complete a full 360° cycle, so step 5 returns to the same position as step 1 — pointing right.
Question 6: In a grid, the number of dots in each cell equals the sum of the two cells directly above it (like Pascal's triangle). If the top row is 1, 2, 1, what is the leftmost value of the third row?
- 1 (Correct answer)
- 3
- 2
- 4
Correct answer: 1
The leftmost cell in any row has no left neighbor, so it inherits only the edge value of 1.
Question 7: A pattern alternates between adding 3 and subtracting 1: 5, 8, 7, 10, 9, ___. What is the next number?
- 12 (Correct answer)
- 11
- 8
- 13
Correct answer: 12
The pattern adds 3 then subtracts 1 repeatedly: 9 + 3 = 12.
RBC Abstract and Logical Patterns 2
A series of shapes alternates: circle, square, triangle, circle, square, ___.
What comes next?