SBI PO 06 May 2017 Papers

I. 9x2 – 18x + 8 = 0
⇒ 9x2 – 6x – 12x + 8 = 0
⇒ 3x (3x – 2) –4 (3x – 2) = 0
⇒ (3x – 2) (3x – 4) = 0
⇒ x =

2

3

or

4

3

II. 3y2 – 10y + 8 = 0
⇒ 3y2 – 6y – 4y + 8 = 0
⇒ 3y (y – 2) – 4 (y – 2) = 0
⇒ (y – 2) (3y – 4) = 0
⇒ y = 2 or,

4

3

Clearly, x ≤ y