Cost Price of 500 units = 500 × 120 = 60000 Selling Price of 300 units at 15% profit = 300 × 120 × 1.15 = 41400 Selling Price of 200 units at 5% loss = 200 × 120 × 0.95 = 22800 Total Selling Price = 41400 + 22800 = 64200 Overall Profit =64200 - 60000 = 4200 = 7%
I. 81x - 117√x + 40 = 0
II. 81y - 225√y + 136 = 0
I. 5x² -14x + 8 = 0
II. 2y² + 17y + 36 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 34x + 288 = 0
Equation 2: y² - 29y + 210 = 0
I.8(x+3) + 8(-x) =72
II. 5(y + 5) + 5(-y) = 150
I. x3 = 1728
II. y2 – 15y + 56 = 0
I. 8x² + 2x – 3 = 0
II. 6y² + 11y + 4 = 0
I. 2y2 + 11y + 15 = 0
II. 3x2 + 4x - 4= 0
(i) 2x² – 9x + 10 = 0
(ii) 4y² – 12y + 9 = 0
I. 195x² - 46x - 21 = 0
II. 209y² + 7y - 12 = 0
I. 7x + 8y = 36
II. 3x + 4y = 14