Question
Which one of the following is wrong in the series?
14Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â 38Â Â Â Â Â Â Â Â Â Â Â 137Solution
14 × 0.5 + 1 = 8 8 × 1.5 + 2 = 14 14 × 2.5 + 3 = 38 38 × 3.5 + 4 = 137 16 shall be replaced by 14 to make these series correct.
I. 8y2 - 2y - 21 = 0
II. 2x2 + x - 6 = 0
I. 4x² -  15x + 9 = 0
II. 20y² -  23y + 6 = 0
I. 40x² + 81x + 35 = 0
II. 63y² + 103y + 42 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 20x + 96 = 0
Equation 2: y² - 18y + 72 = 0
I:Â x2Â - 33x + 242 = 0
II:Â y2Â - 4y - 77 = 0
I. x2 – 13x + 40 = 0
II. 2y2 – 15y + 13 = 0Â
I. 5x² = 19x – 12
II. 5y² + 11y = 12
I. 81x - 117√x + 40 = 0
II. 81y - 225√y + 136 = 0
I. x² - 19x + 84 = 0
II. y² - 25y + 156 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 24x + 135 = 0
Equation 2: y² - 26y + 153 = 0
