Correct Answer - Option 3 : 10
Concept:
To convert any number system into the decimal number system, multiply each position by its weight and add.
For example:
\(\begin{array}{*{20}{c}} x\\ \downarrow \\ {{b^2}} \end{array}\;\begin{array}{*{20}{c}} y\\ \downarrow \\ {{b^1}} \end{array}\;\begin{array}{*{20}{c}} z\\ \downarrow \\ {{b^0}} \end{array}\)
Analysis:
(1010)2 = [(1 × 23) + (0 × 22) + (1 × 21 ) + (0 × 20)]10
= (10)10
