Question
A can complete a task in 10 days, and B can complete it
in 15 days. After 3 days of working together, B leaves. How many more days will A take to finish the remaining work?Solution
Combined 1-day work of A and B = 1/10 + 1/15 = 1/6 Work done in 3 days = 3 × 1/6 = 1/2 Remaining work = 1/2 A’s 1-day work = 1/10 Days taken by A = (1/2)/(1/10) = 5 days
Which of the following types of software testing ensures that previously working functionality is still operational after changes?
Which of the following is a key challenge in handling deadlocks in an operating system?
Which sorting algorithm is considered the most efficient for large datasets with no additional memory constraints?
- Internet of Things (IoT)
In an IoT ecosystem, which protocol is most efficient for constrained devices communicating over lossy networks?
... Which of the following statements about normalization in relational databases is correct?
Which search algorithm is complete but not always optimal?
Which I/O scheduling algorithm is most suitable for minimizing seek time in hard drives?
Which SOLID principle ensures that a class has only one reason to change?
Hashing is used for:
Which of the following statements accurately describes the function of a Gantt Chart in project management?
