Correct Answer - Option 2 : x < y
Calculation:
From I,
x2 – 3x – 180 = 0
⇒ x2 – 15x + 12x – 180 = 0
⇒ x(x – 15) + 12(x – 15) = 0
⇒ (x + 12)(x – 15) = 0
⇒ x = –12, 15
From II,
y2 – 34y + 288 = 0
⇒ y2 – 18y - 16y + 288 = 0
⇒ y(y – 18) - 16(y – 18) = 0
⇒ (y – 18)(y – 16) = 0
⇒ y = 18, 16
Comparison between x and y (via Tabulation):
Value of x
|
Value of y
|
Relation
|
-12
|
18
|
x < y
|
-12
|
18
|
x < y
|
15
|
16
|
x < y
|
15
|
16
|
x < y
|
∴ The correct answer is x < y