Quantitative Aptitude Ques 2128
Question: Directions: In the following questions two equations numbered I and II are given. You have to solve both the equations and give answer. [RBI (Assistant) Scale 2011]
I. $ {{(x)}^{2}}=961 $
II. $ y=\sqrt{961} $
Options:
A) If $ x>y $
B) If $ x\ge y $
C) If $ x<y $
D) If $ x\le y $
E) If $ x=y $ or the relationship cannot be established
Show Answer
Answer:
Correct Answer: E
Solution:
- I. $ x^{2}=961 $
$ \Rightarrow $ $ x=\pm \sqrt{961} $
$ \Rightarrow $ $ x=\pm 31 $
II. $ y=\sqrt{961} $
$ \Rightarrow $ $ y=\pm 31 $ Hence, $ x=y. $