Direction: In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² + 13x + 42 = 0
II. y² – 2y - 63 = 0

Direction: In the following questions two equations numbered I and II are given. You have to solve both the equations and find relation between x and y.

I. x²+ 14x + 48 = 0

II. y²+ 12y + 32 =0

In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer.

I. 16x²– 32x + 15 = 0

II. 16y²– 48y + 35 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x²– 35x + 294 = 0

II. y²– 68y + 1140 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x²- 12x + 35 = 0

II. y²- 25y + 126 = 0

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x²– 37x + 330 = 0

II. y²– 28y + 195 = 0

A root of equation $$({ax}^2+bx+c)$$ (where a, b and c are rational numbers) is 5 +3√3. What is the value of $$({a}^2+b^2+c^2) / (a+b+c) ? $$

A man rows at 5 km/h in still water. If the river is running at 1 km/h, it takes him 75 minutes to row to a place and back. How for is the place?