1) The ratio of $4^{3.5}:2^{5}$ is same as : A) 7 B) 4 C) 5 D) 4.5 E) 7 Answer: Option BExplanation:$ \frac{4^{3.5}}{2^{5}}$ $= \frac{(2^{2})^{3.5}}{2^{5}} $ $ = \frac{2^{2\times 3.5}}{2^{5}} $ $ = \frac{2^{7}}{2^{5}}$ $=2^{2} =4 $