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Start learning 50% faster. Sign in nowLet the speed of the boy in still water be x kmph. Then, (x + 3) × 2 = (x – 3) × 5 => 2x + 6 = 5x - 15 => 3x = 21 => x = 7 kmph
Which technology allows a processor to execute multiple threads or processes simultaneously?
Which markup language is used to define the structure and layout of content on a web page?
What happens when a program accesses data that is not currently in physical memory (RAM) due to virtual memory management?
Which SQL statement is used to modify existing data in a database table?
Which of the following conditions must be satisfied for a deadlock to occur?
What is the primary purpose of a firewall in network security?
Which protocol is used for managing and monitoring network devices and their functions?
Kirchhoff's Voltage Law (KVL) is based on the principle of:
What does a lexer (lexical analyzer) do in the compilation process?
How can we set default rwx permission to all users on every file which is created on the current shell?