40 Litres of water is added to 60 litres of a solution

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}?

If a + b² + c² = 16, x² + y² + z² = 25 and ax + by + cz = 20, then the value of (a+b+c)/(x+y+z)

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

If x⁴ + 2x³ + ax² + bx + 9 is a perfect square, where a and b are positive real numbers, then the value of a and b are

If x² + y² + 2x + 1 = 0, therefore the value of x³¹ + y³⁵ is

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

Find x, given 5 (√5)^x+6 = (√5)^2x+7 :

Which is the largest six digit number, which when divided by 12, 15, 20, 24 and 30, leaves the remainders 8, 11, 16, 20 and 26 respectively.

The value of = 3/4 ÷ 3/4  of 4/3 + 5/2 ÷ 2/5 of 5/4 – (2/3 + 2/3 of 5/6) is :

The expression of (cot θ + cosec θ −1) / (cot θ − cosec θ+1) is equal to