Question
Pipe P can fill half of the tank in 8 hrs 5 min and pipe
Q can fill the same tank completely in 16 hrs 5 min. Another pipe R can empty the full tank in 12 hrs. If all the pipes are opened together then in how much time 66.66% of the tank is filled?Solution
Pipe A can fill half of the tank in =8 hrs 5 min Then pipe A can fill the full tank in =16 hrs 10 min So, pipe A can fill the full tank approximately in =16 hrs Pipe B can fill the same tank approximately in =16 hrs Pipe C can empty the full tank in =12 hrs One hour capacity of A = 1/16 One hour capacity of B = 1/16 One hour capacity of C = -1/12 Total capacity = 48 units (LCM of 16, 16, 12) Efficiency of pipe A = 3 units/hr Efficiency of pipe A = 3 units/hr Efficiency of pipe A = -4 units/hr 
= 16 hrs
Which of the following testing types focuses on validating that a system meets its functional requirements?
Which SOLID principle emphasizes that software entities should be open for extension but closed for modification?
Which of the following sampling techniques is most suitable when the population is divided into distinct subgroups, and it is important to ensure each s...
Which of the following is the most appropriate algorithmic approach for solving the "Knapsack Problem" where the goal is to maximize the value within a ...
What is the result of the following SQL query?
 SELECT department, COUNT (employee_id)Â
FROM employees GROUPBY department HAVING COUNT (e...In OOP, what term best describes the relationship where one object is a part of another but cannot exist independently?
Which type of software testing focuses on the internal structure and logic of the code rather than its functionality?
How can predictive analysis significantly enhance healthcare outcomes?
Which phase of the Software Development Lifecycle (SDLC) focuses on gathering detailed functional and non-functional requirements to define project scop...
Which of the following best describes the main objective of predictive analytics in healthcare, particularly in the context of improving patient care?
