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OCR GCSE J277 and A Level H446

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GCSE · OCR J277

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Data Representation

Question

What is the denary value of the binary number 1011?

Model Answer

Correct Answer:

11

To convert binary 1011 to denary: (1 × 2³) + (0 × 2²) + (1 × 2¹) + (1 × 2⁰) = 8 + 0 + 2 + 1 = 11

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A Level · OCR H446

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