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BEBRAS 2026 Grade 3-4 Round 2 Ext Question 5

BEBRAS · BEBRAS 2026 Grade 3-4 Round 2 Ext

Question 5

A robot embroiders carpets using four coded patterns: 00 horizontal lines, 11 dots, 01 diagonal lines, 10 vertical lines.

Question illustration

It follows each row from left to right, and rows from top to bottom. The program is:
- Row 1: 00-10-10-10-01-10-10-10-00
- Row 2: 10-01-10-01-01-01-10-01-10
- Row 3: 01-11-01-01-11-01-01-11-01
- Row 4: 10-01-10-01-01-01-10-01-10
- Row 5: 00-10-10-10-01-10-10-10-00

Which carpet results?

Question illustration
  1. Carpet A
  2. Carpet B
  3. Carpet C
  4. Carpet D