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GCE Computer Studies 2025 Objective — Question 44

Question 44 of 50 from the General Certificate of Education (GCE) Computer Studies 2025 Objective paper, with the correct answer and a full explanation.

The binary number 100101 can be written in denary as

A. 25
B. 37Correct
C. 45
D. 211

Explanation

100101(base 2) = (1x32)+(0x16)+(0x8)+(1x4)+(0x2)+(1x1) = 32+4+1 = 37 in denary.

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