Select the related number from the given

If x + y + z = 0, then what is the value of (3y² + x² + z²)/(2y² – xz)?

If a³ = 117 + b³ and a = 3 + b, then the value of a + b is:

If 2y cos θ  = x sin θ  and 2x sec θ -  y cosec θ  = 3, then the value of x²+ 4y² is

If (2x + 3y+ 4) (2x + 3y 5) is equivalent to (ax² + by² + 2hxy + 2gx + 2fy + c), then what is the value - of ((g + f – c) / abh}?

Solve the cubic equation, x³ − 7x² + 14x − 8 = 0 and Find all real roots.

If 3x + 5y + 7z = 49 and 9x + 8y + 21z = 126, then what is the value of y?

10 women and 12 men complete a certain piece of work in 30 days, if each women takes thrice the time taken by a man to finish the work.

 is equal to:

Which one of the following is the equation for Velocity Time relation?