IBPS SO Prelims Exam Model Paper 4

I. 10x2 – 59x + 45 = 0
⇒ 10x2 – 9x – 50x + 45 = 0
⇒ x (10x – 9) – 5 (10x – 9) = 0
⇒ (10x – 9) (x – 5) = 0
⇒ x =

9

10

, 5
II. 9y2 – 100y + 100 = 0
⇒ 9y2 – 10y – 90y + 100 = 0
⇒ y (9y – 10) – 10 (9y – 10) = 0
⇒ (9y – 10) (y – 10) = 0
⇒ y =

10

9

, 10Hence, relationship between x and y cannot be established.