Radius of the pond = 28 / 2 = 14 meters. Outer radius (including path) = 14 + 2 = 16 meters. Area of the path = Area of outer circle - Area of the pond. Area of outer circle = π(16²) = (22/7) × 256 Area of the pond = π(14²) = (22/7) × 196 Area of the path = (22/7) × (256 – 196) m². = 60*22/7 Cost = 60*22/7 × 140 = ₹26,400 Correct answer: b) ₹26,400.
Which operation in relational algebra is used to create a new relation that includes all the rows from two given relations?
The "Selection" operation in relational algebra is equivalent to which operation in SQL?
A resistor has a resistance of 100 ohms and a current of 2 amperes passing through it. Calculate the voltage drop across the resistor.
What is the primary purpose of a database transaction?
What is a key benefit of using the MVC architecture in software development?
Which type of backup includes all selected files and marks them as backed up?
What protocol is used for file transfer between a local computer and a remote server?
SELECTGETDATE();
This query will give
What is the main advantage of using NoSQL databases for big data storage over traditional relational databases?
Which IPC mechanism provides synchronization capabilities to prevent race conditions between processes?