Question

Observe the pattern, and select the statement that is incorrect.

• A. The 10th and 13th shapes will be triangles
• B. The 12th and 15th shapes will be squares.
  
• C. The 14th shape will be a circle
• D. The 13th and 16th shapes will be circles.

Answer 1

The correct option is D The 13th and 16th shapes will be circles.

Solution:
Say:
Let us identify the pattern rule first.
Steps:

• The pattern rule is: triangle, circle, square.
• The pattern repeats itself in 3 steps. So, every third shape will be a square. Every second shape will be a circle, and every first shape will be a triangle. But to identify them easily, we will arrange them on the whiteboard.
• Option A: The 12th and 15th shapes will be squares. This is correct.
• Option B: The 13th and 16th shapes will be circles. This is incorrect.
• Option C: The 10th and 13th shapes will be triangles. This is correct.
• Option D: The 14th shape will be a circle. This is correct.
• Since Option B is the only incorrect statement, B is the answer.