Quantitative Aptitude Ques 502

Question: Directions: What approximate value will come in place of question mark (?) in the given Questions? (You are not expected to calculate the exact value.)

$ 2775\times \frac{160}{\sqrt{(?)}}=5550 $

Options:

A) 6400

B) 5625

C) 900

D) 1600

E) 2025

Show Answer

Answer:

Correct Answer: A

Solution:

  • [a] $ 2775\times \frac{160}{\sqrt{?}}=5550 $
    $ \Rightarrow $ $ \frac{2775\times 160}{5550}=\sqrt{?} $
    $ \Rightarrow $ $ \sqrt{?}=\frac{160}{2}=80 $
    $ \Rightarrow $ $ ?={{(80)}^{2}}=6400 $
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