Group by Fill Pattern

Group by Fill Pattern problems involve grouping figures based on their interior fill characteristics. Common fill types include solid (completely filled), hollow (only outline), striped (has stripe pattern), dotted (has dot pattern), and crosshatch. These problems test your ability to recognize and categorize different fill patterns.

10Worksheets
200+Practice Questions
BeginnerDifficulty
1 hourHours to Master

Introduction to Group by Fill Pattern

Group by Fill Pattern problems involve grouping figures based on their interior fill characteristics. Common fill types include solid (completely filled), hollow (only outline), striped (has stripe pattern), dotted (has dot pattern), and crosshatch. These problems test your ability to recognize and categorize different fill patterns.

Prerequisites

Understanding of solid vs hollow shapes Recognition of striped and dotted patterns Ability to see interior fill details Visual pattern discrimination
Why This Matters: Group by Fill Pattern problems appear in 1-2 questions in SSC CGL and Banking PO exams. They test visual discrimination of interior patterns.

How to Solve Group by Fill Pattern Problems

1

Step 1: Examine each figure's interior fill pattern

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Step 2: Identify which figures are solid (completely filled)

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Step 3: Identify which figures are hollow (only outline, transparent interior)

4

Step 4: Identify any patterned fills (striped, dotted, crosshatch)

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Step 5: Group figures with the same fill pattern together

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Step 6: The classification basis is fill pattern type

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Step 7: Answer how the figures are grouped

Pro Strategy: Always check whether the shape has interior fill or is transparent. Solid fills block the background; hollow shapes allow background visibility. Striped and dotted patterns have regular repeating elements.

Example Problem

Example: Three solid shapes and three hollow shapes are shown. How are they grouped? Solution: Step 1: Group 1: Solid shapes (interior completely filled) Step 2: Group 2: Hollow shapes (only outline, transparent interior) Step 3: Classification basis = Fill pattern (solid vs hollow) Answer: Grouped by fill pattern - solid vs hollow

Pro Tips & Tricks

  • Filled shapes have color inside the boundary
  • Outlined shapes have only the border drawn (transparent inside)
  • Striped patterns have parallel lines inside
  • Dotted patterns have dots arranged regularly
  • Crosshatch patterns have intersecting lines
  • The fill color itself doesn't matter - only presence/type of fill

Shortcut Methods to Solve Faster

If you can see the background through the shape, it's hollow
If the shape blocks the background, it's solid
Striped patterns have repeating line patterns
Dotted patterns have repeating dot patterns
All figures with same fill pattern belong to same group

Common Mistakes to Avoid

Confusing thick outline with filled shape
Thinking patterned fill means no fill
Not checking that all figures in group have same fill status
Focusing on border color instead of interior fill

Exam Importance

Group by Fill Pattern is an important topic for various competitive exams. Here's how frequently it appears:

SSC CGL
1-2 questions
BANKING PO
1-2 questions
RAILWAYS RRB
1-2 questions
INSURANCE
1-2 questions

Ready to Master Group by Fill Pattern?

Start with Worksheet 1 and work your way up to expert level! Each worksheet includes:

20 practice questions
Detailed solutions
Step-by-step explanations
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