Speed of stream = 0.25 X 48 = 12 km/h Upstream speed = 48 - 12 = 36 km/h Downstream speed = 48 + 12 = 60 km/h ATQ: We have, (D/36) - (D/60) = 2 Or, (5D - 3D) ÷ 180 = 2 Or, 2D = 360 So, 'D' = 180 Therefore, the value of 'D' is 180.
I. 99 x² + 31 x – 110 = 0
II. 6y² - 31y + 35 = 0
How many values of x and y satisfy the equation 2x + 4y = 8 & 3x + 6y = 10.
I. 10x² - 11x + 3 = 0
II. 42y² - 23y – 10 = 0
I. x2 + 28x + 96 = 0
II. y2 + 3y - 70 = 0
I. 96x² + 52x - 63 = 0
II. 77y² + 155y + 72 = 0
I. 35x² + 83x + 36 = 0
II. 42y² + 53y + 15 = 0
Equation 1: x² - 120x + 3500 = 0
Equation 2: y² - 110y + 3025 = 0
I. (2x-3)3+ 1/((2x-3)³)=2
II. 4y²+(y+8)^2= 157
I. 8a2 – 22a+ 15 = 0
II. 12b2 - 47b + 40=0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 37x² - 172x + 135 = 0
Equation 2: 29y² - 132y +...
