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Speed = 7x : x
Downstream = 8x; upstream = 6x
Upstream speed = 4.2 x (60/14) = 18kmph
6x = 18
x = 3
Downstream = 8 x 3 = 24
Time taken for 17.6 km = 17.6 x (60/24) = 44 min
I. x2 – 39x + 360 = 0
II. y2 – 36y + 315 = 0
If x^2 - 7x + k = 0 has roots that are equal, what is the value of k?
I. 4x² - 15x + 9 = 0
II. 20y² - 23y + 6 = 0
I. 96x² + 52x - 63 = 0
II. 77y² + 155y + 72 = 0
Solve both equations I & II and form a new equation III in variable ‘r’ (reduce to lowest possible factor) using roots of equation I and II as per ...
I. 6x² + 37x + 45 = 0
II. 3y² - 11y + 6 = 0
Equation 1: x² - 120x + 3500 = 0
Equation 2: y² - 110y + 3025 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 3x2 + 6√7x - 315 = 0
E...
I. 2x² - 9x + 10 = 0
II. 3y² + 11y + 6 = 0
The quadratic equation (p + 1)x 2 - 8(p + 1)x + 8(p + 16) = 0 (where p ≠ -1) has equal roots. find the value of p.
