Question
The average weight of 20 students is 27 kg. If two
students weighing 19 kg and 47 kg are replaced by a teacher weighing 77 kg, what is the new average weight?Solution
Total weight of all the students in the class, initially = 20 X 27 = 540 kg New total weight of the class = 540 - (19 + 47) + 77 = 551 kg So, new average weight of each student in the class = 551 ÷ 19 = 29 kg
Which protocol is used for real-time communication over the internet?
What is the purpose of the "isolation" property in transactions?
A communications protocol defines the rules for sending blocks of data (each known as a Protocol Data Unit (PDU)) from one node in a network to another ...
What is artificial intelligence (AI)?
Attributes that do not exist in the physical database, but their values are derived from other attributes present in the database.
In syntax-directed translation, what is a production rule associated with?
In RDBMS, what is the purpose of the Data Dictionary?
Which sorting algorithm is known for its best-case time complexity of O(n) when the input is already partially sorted?
Which of the following statements about MOSFETs is true?
Which scheduling algorithm is used to allocate CPU time to processes in an operating system?