Quantitative Aptitude Ques 2020

Question: Directions: What will come in place of question marks in the given questions?

$ \sqrt{2601}+\sqrt{169}={8^{12-?}} $

Options:

A) 10

B) 9

C) 8

D) 7

Show Answer

Answer:

Correct Answer: A

Solution:

  • $ \sqrt{2601}+\sqrt{169}={8^{12-?}} $

$ \Rightarrow $ $ 51+13={8^{12-?}} $
$ \Rightarrow $ $ 64={8^{12-?}} $

$ \Rightarrow $ $ 8^{2}={8^{12-?}} $
$ \Rightarrow $ $ ?=10 $

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