Let the total work = 240 units Then, efficiency of ‘A’ = (240/20) = 12 units/hour Work completed by ‘A’ alone in 15 hours = 12 × 15 = 180 units Remaining work = 240 – 180 = 60 units So, efficiency of ‘B’ = 60/20 = 3 units/hour Therefore, combined efficiency of ‘A’ and ‘B’ = 3 + 12 = 15 units/hour So, time taken by ‘A’ and ‘B’ together to complete the work = (240/15) = 16 hours
The process that starts Operating Systemwhen the user turns on a computer system is known as _________
The primary function of the ............ is to set up the hardware and load and start an operating system
What are the main functions of system utilities?
Which among the following is used to reduce the size of files to increase the amount of disk space in the computer system?
Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?
An AND gate
What is the purpose of NAT (Network Address Translation) in a computer network?
Which among the following are office-oriented application software?
Which of the following is also known as presentation software that is used to give presentation of information and pictures through slideshows?
In the OSI model, which layer is responsible for converting data into a suitable form for transmission?