Convert 101 (base two) to base ten.
A101
B5CORRECT
C6
D3
Common EntranceMathematicsNumber Bases
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Why the answer is B, and why the others tempt you.
Place values in base two are 4, 2, 1: 1 x 4 + 0 x 2 + 1 x 1 = 5.
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