Which of the following Traceability system is offered by

I. 7x² + 27x + 18 = 0

II. 19y² - 27y + 8 = 0

Quantity I: The price of rice is decreased by 30%, by how much % the consumption is increase so that the expenditure will decreased by 10%?

I. 5x² = 19x – 12

II. 5y² + 11y = 12

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

Equation 1: 17x² - 94x + 120 = 0

I. 10p² + 21p + 8 = 0

II. 5q² + 19q + 18 = 0

I. 3p² - 17p + 22 = 0

II. 5q² - 21q + 22 = 0

I. 22x² - 97x + 105 = 0

II. 35y² - 61y + 24 = 0

If α, β are the roots of the equation x² – px + q = 0, then the value of α²+β²+2αβ is 

I. x² + 28x + 96 = 0

II. y² + 3y - 70 = 0