Solve the quadratic equations and determine the relation between x and y:

Equation 1: x² - 45x + 450 = 0

I. x² + 28x + 96 = 0

II. y² + 3y - 70 = 0

I. x² + x – 42 = 0

II. y² + 6y – 27 = 0

What is the average salary of 10 officers , if a clerk’s salary is Rs. 15,000?

I. 6x² – 7x - 20 = 0

II. 3y² - y - 14 = 0

I. 2x² - 12x + 16 = 0    

II. 4y² - 8y  - 12 = 0    

I. 5x + y = 37

II. 4y+ x = 15

Solve the quadratic equations and determine the relation between x and y:

Equation 1: x² - 54x + 704 = 0

Equation 2: y² - 44y + 448 = 0

I: x² + 31x + 228 = 0

II: y² + 3y – 108 = 0

I. x² - x - 56 = 0

II. y² - 20y + 96 = 0