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ATQ;
Task done by 8 girls in 1 day = 1/120
Task done by 10 girls in 1 day = 10/120 = 1/12
Task done by 20 boys = 1/50 – 1/12 = 1/60
Task done by 80 boys = 4/60 = 1/15
Hence, required time = 15 days
I. x² - (16)2 = 0
II. 2y - 14 = 0
I. 144x² - 163x - 65 = 0
II. 91y² - 128y -48 = 0
I. 20x² - 93x + 108 = 0
II.72y² - 47y - 144 = 0
I. x² – 44x + 468 = 0
II. y² – 30y + 216 = 0
I. 2x² - 12x + 16 = 0
II. 4y² - 8y - 12 = 0
If a quadratic polynomial y = ax2 + bx + c intersects x axis at a and β, then
I. 35 y² + 58 y + 24 = 0
II. 21 x² + 37 x + 12 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 50x + 600 = 0
Equation 2: y² - 51y + 630 = 0
LCM of 'x' and 'y' is 30 and their HCF is 1 such that {10 > x > y > 1}.
I. 2p²- (x + y) p + 3q = 0
II. 2q² + (9x + 2) = (3x + y) q
I. 4x² - 21 x + 20 = 0
II. 8y² - 22 y + 15 = 0
