Consider the statements P and Q.

P: Client’s Preliminary Estimate is used for budgeting costs toward the end of planning and design phase.

Q: Client’s Detailed Estimate is used for controlling costs during the execution of the project.

Which one of the following options is CORRECT?

Which one of the following statements related to bitumen is FALSE?

The smallest positive root of the equation $$x^5 - 5 x^4 - 10 x^3 + 50 x^2 + 9 x - 45 = 0$$ lies in the range

The second-order differential equation in an unknown function $$u : u(x, y)$$ is defined as $$\frac{\partial^2 u}{\partial x^2}= 2$$

Assuming $$g : g(x)$$, $$f : f(y)$$, and $$h : h(y)$$, the general solution of the above differential equation is