Question
Pooja walks 16 km towards North. From there she walks 10
km towards South. Then, she walks 8 km towards East. How far is she from her starting point? ÂSolution
PR = (PQ – QR) = (16 – 10) = 6 km RS = 8 km So, Sonia’s distance from starting point P = √ 6² + 8² = √ 36 + 64 = √ 100 = 10 Km.
I. 3x2 = 2x2 + 9x – 20
II. 3y2 = 75
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 19x² - 92x + 73 = 0
Equation 2: 17y² - 76y + 59 = 0
In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer Â
I. 3x² –7x + 4 = 0�...
I. x2 – 7x + 12 = 0
II. y2 – 7y + 10 = 0
I. 63x² + 146x + 80 = 0
II. 42y² + 109y + 70 = 0
I. 3x2 – 17x + 10 = 0
II. y2 – 17y + 52 = 0
I. x2 + (9x/2) + (7/2) = - (3/2)
II. y2 + 16y + 63 = 0
I. 40 x² - 93 x + 54 = 0
II. 30 y² - 61 y + 30 = 0
I. 2x² - 7x + 3 = 0
II. 8y² - 14y + 5 = 0
I. 10p² + 21p + 8 = 0
II. 5q² + 19q + 18 = 0
