Quantitative Aptitude Ques 1102

Question: Directions: What approximate value should come in place of question mark (?) in the following questions? (You are not required to calculate the exact value.) [IBPS (PO) 2013]

$ {{(4.989)}^{2}}+{{(21.012)}^{3}}+\sqrt{1090}=? $

Options:

A) 9219

B) 9391

C) 9319

D) 9129

E) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

  • $ {{(4.989)}^{2}}+{{(21.012)}^{3}}+\sqrt{1090} $

$ \Rightarrow $ $ ?\approx {{(5)}^{2}}+{{(21)}^{3}}+\sqrt{1089} $

$ \Rightarrow $ $ ?\approx 25+9261+33=9319 $