Quantitative Aptitude Ques 2207
Question: Directions: In the following questions two equations numbered I and II are given. You have to solve both the equations and given answer.
I. $ x^{2}-463=321 $
II. $ y^{2}-421=308 $
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}=463+321=784 $
$ \therefore $ $ x=\sqrt{784} $
$ \therefore $ $ x=\pm 28 $ II. $ y^{2}=308+421=729 $
$ \therefore $ $ y=29=\pm 27 $ Hence, $ x=y $ or the relationship cannot be established.
BETA
