question_answer

Direction: In each question, two equations numbered I and II are given. You have to solve both the equations and mark the appropriate option. Give answer

I. \[12{{x}^{2}}-17x-7=0\]    II.\[10{{y}^{2}}+37y-12=0\]

A)  if x > y                       

B)  if x < y           

C)  if x < y          

D)  if x > y           

E)    if x = y or relationship between x and y can't be established.

Correct Answer: E

Solution :

I. Step I. Step II.  \[-\frac{21}{12}\]                       \[\frac{4}{12}\] Step III. \[x=+\frac{7}{4},\]       \[-\frac{1}{3}\] II. Step I. Step II. \[+\frac{40}{10}\]                      \[-\frac{3}{10}\] Step III. \[y=-\,4,\]                      \[+\frac{3}{10}\] Hence no relationship can be established.