(112 × 54) = ?

Answer: Option B

$$\begin{array}{rl}& 112\times 5^4\\ & =112\times {\left(\frac{10}{2}\right)}^4\\ & =\frac{112\times {10}^4}{2^4}\\ & =\frac{1120000}{16}\\ & =70000\end{array}$$