Quantitative Aptitude Ques 652

Question: Directions: What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value.) [Bank (PO) 2009]

$ \sqrt{624.9995}+{{(4.9989)}^{2}}=?\div \frac{1}{4.9900865} $

Options:

A) 6

B) 60

C) 10

D) 126

E) 16

Show Answer

Answer:

Correct Answer: C

Solution:

  • $ \sqrt{624.9995}+{{(4.9989)}^{2}}=?,\times 4.9900865 $

$ \Rightarrow $ $ ?\approx \sqrt{625}+{{(5)}^{2}}=?,\times 5 $

$ \Rightarrow $ $ ?\approx 25+25=5\times ? $
$ \Rightarrow $ $ ?=10 $

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