IBPS SO Prelims Exam Model Paper 7

Given:
I. x2 - 17x + 72 = 0
II. y2 + 2y - 80 = 0
Calculation:
From I,
x2 - 17x + 72 = 0
⇒ x2 - 8x - 9x + 72 = 0
⇒ x(x - 8) - 9(x - 8) = 0
⇒ (x - 8)(x - 9) = 0
⇒ x = 8, 9
From II,
y2 + 2y - 80 = 0
⇒ y2 + 10y - 8y - 80 = 0
⇒ y(y + 10) - 8(y + 10) = 0
⇒ (y + 10)(y - 8) = 0
⇒ y = 8, -10∴ x ≥ y