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ATQ, Let the efficiency of 'A' be 'a' units/day. So, total work = 16 × a = '16a' units So, work done by 'A' in 8 days = a × 8 = '8a'units So, work done by 'B' = 16a - 8a = '8a' units So, efficiency of 'B' = 8a ÷ (12 + 8) = '0.4a'units/day So, required time = 16a ÷ 0.4a = 40 days
I. 2p² - 11p + 12 = 0
II. 2q² - 17q + 36 = 0
I. x² - 19x + 84 = 0
II. y² - 25y + 156 = 0
I. x2 + 16x + 63 = 0
II. y2 + 2y - 15 = 0
If x^2 - 7x + k = 0 has roots that are equal, what is the value of k?
I. x2 + 25x + 154 = 0
II. y2 + 27y + 181 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 40x + 300 = 0
Equation 2: y² - 30y + 216 = 0
I. 4x2+ 3√7 x-7 =0
II. 7y2+ 4√7 y-5=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
l). 2p² + 12p + 18 = 0
ll). 3q² + 13q + 12 = 0
I. 14p² + 9p - 8 = 0
II. 4q² - 19q + 12 = 0
