The salary of a person is increased by Rs. 500. If his old

I. 2x² + 13x + 21 = 0

II. 3y² + 34y + 63 = 0

I. 88x² - 13 x – 56 = 0

II. 15 y² + 41 y + 28 = 0

A and B are the roots of equation x² - 13x + k = 0. If A - B = 5, what is the value of k?

I. 35x² - 51x + 18 = 0

II. 30y² + 17y – 21 = 0

The roots of the equations x² + 16x + 63 = 0

I. 3p² - 17p + 22 = 0

II. 5q² - 21q + 22 = 0

Equation 1: x² - 45x + 500 = 0

Equation 2: y² - 60y + 600 = 0

I: x² + 31x + 228 = 0

II: y² + 3y – 108 = 0

I. 5x² – 7x – 6 =0

II. 2y² – 5y – 7 =0

I. x² - 17x + 70 = 0

II. y² - 11y + 28 = 0