Quantitative Aptitude Ques 1769

Question: If $ 0.42\times 100^{k}=42, $ then the value of k is

Options:

A) 4

B) 2

C) 1

D) 3

Show Answer

Answer:

Correct Answer: C

Solution:

  • Given, $ 0.42\times 100^{k}=42 $

$ \Rightarrow $ $ \frac{42}{100}\times 100^{k}=42 $

$ \Rightarrow $ $ 100^{k}=\frac{42\times 100}{42}=100^{1} $ On comparing both sides, we get $ k=1 $

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