waecmaths question:
Convert 101101two to a number in base ten
Option A:
61
Option B:
46
Option C:
45
Option D:
44
waecmaths solution:
$\begin{align} & {{101101}_{2}}=1\times {{2}^{5}}+0\times {{2}^{4}}+1\times {{2}^{3}}+1\times {{2}^{2}}+0\times {{2}^{1}}+1 \\ & {{101101}_{2}}=32+0+8+4+1=45 \\\end{align}$
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