Sum of smallest and largest number = 30 × 70 – 28 × 68 = 196 Difference of smallest and largest number = 140 ∴ Largest number = (196 +140)/2 = 168
I. 195x² - 46x - 21 = 0
II. 209y² + 7y - 12 = 0
I. 35x² - 24x – 35 = 0
II. 72y² - 145y + 72 = 0
I). 5p2 - p - 4 = 0
II). q2 - 12q + 27 = 0
I. x ² + 5 x + 6 = 0
II. y²+ 7 y + 12= 0
...I. x2 – 10x + 21 = 0
II. y2 + 11y + 28 = 0
I. 5x + y = 37
II. 4y+ x = 15
I. 27x² + 120x + 77 = 0
II. 56y² + 117y + 36 = 0
I. 2x2 – 10x – 48 = 0
II. y2 – 16y – 297 = 0
I. x2 – 19x + 88 = 0
II. (y + 4)2 = 121
I. 4p² + 17p + 15 = 0
II. 3q² + 19q + 28 = 0
