Seven boxes A, B, C, D, E, F and G are placed one above

In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer   

I. p² - 10p +21 = 0

II. q² + q -12 = 0

I. y/16 = 4/y 

II. x³ = (2 ÷ 50) × (2500 ÷ 50) × 4² × (192 ÷ 12)

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

Equation 1: 3x² + 6x - 9 = 0

Equation 2: 2y² - 16y + 32 = 0

I. x=  √(20+ √(20+ √(20+ √(20…………….∞)) ) ) 

II. y= √(5√(5√(5√(5……….∞)) ) ) 

I. 7p + 8q = 80

II. 9p – 5q = 57

I. 2y² – 19y + 35 = 0

II. 4x² – 16x + 15 = 0

If x + 1/x = 4, find x⁵ + 1/x⁵.

I. 27(p + 2) = 2p(24 – p)

II. 2q² – 25q + 78 = 0

I. x² + 11x + 24 = 0

II. y² + 17y + 72 = 0