Quantitative Aptitude Ques 1785

Question: $ \sqrt{13^{2}+28\div 4-{{(3)}^{2}}+107}={{(?)}^{2}} $ [IBPS (SO) 2012]

Options:

A) 2

B) 16

C) 256

D) 4

E) $ {{(256)}^{2}} $

Show Answer

Answer:

Correct Answer: D

Solution:

  • $ {{(?)}^{2}}=\sqrt{13^{2}+28\div 4-{{(3)}^{3}}+107} $

$ \Rightarrow $ $ ?=\sqrt{169+7-27+107}=\sqrt{256}=16 $

$ \Rightarrow $ $ ?=\sqrt{16}=4 $