Quantitative Aptitude Ques 52
Question: Directions: What should come at the place of question mark (?) in the following questions? [IBPS (Clerk) 2015]
$ {{(32\times {10^{-5}})}^{2}}\times 64\div (2^{16}\times {10^{-4}})={10^{?}} $
Options:
A) 6
B) 10
C) $ -,8 $
D) $ -,6 $
E) $ -10 $
Show Answer
Answer:
Correct Answer: D
Solution:
- $ {{(32\times {10^{-5}})}^{2}}\times 64\div (2^{16}\times {10^{-4}})={10^{?}} $
$ \Rightarrow $ $ \frac{32\times 32\times {10^{-10}}\times 64}{2^{16}\times {10^{-4}}}={10^{?}} $
$ \Rightarrow $ $ \frac{2^{10}\times {10^{-10}}\times 2^{6}}{2^{16}\times {10^{-4}}}={10^{?}} $
$ \Rightarrow $ $ \frac{2^{16}\times {10^{-10}}\times 10^{4}}{2^{16}}={10^{?}} $
$ \Rightarrow $ $ {10^{-6}}={10^{?}} $
$ \therefore $ $ ?=-,6 $
BETA
