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# Value of $$\Large \left( \frac{2^{-3}}{5} \right) ^{-2}$$ is

 A) $$\Large \frac{1}{1600}$$ B) 1600 C) $$\Large \frac{1}{40}$$ D) 40

Correct Answer:
 B) 1600

Description for Correct answer:

$$\Large \left( \frac{2^{-3}}{5} \right)^{-2}$$

= $$\Large \left( \frac{1}{5}\times \frac{1}{2^3} \right)^{-2}$$

= $$\Large \left(\frac{1}{40} \right)^{-2}$$

= $$\Large 40^{2}$$

= 1600

Part of solved Number System questions and answers : >> Aptitude >> Number System

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