Question
A work can be completed by ‘A’ and ‘B’, alone in
20 days and 10 days, respectively. Find the number of days taken by ‘C’ to complete the same work alone if ‘A’, ‘B’ and ‘C’ together can complete the whole work in 4 days.Solution
Let total work = 20 units (LCM of 20 and 10) Efficiency of ‘A’ = (20/20) = 1 units/day Efficiency of ‘B’ = (20/10) = 2 units/day Combined efficiency of ‘A’, ‘B’ and ‘C’ = (20/4) = 5 units/day Efficiency of ‘C’ = 5 – (1 + 2) = 2 units/day Required time taken = (20/2) = 10 days
Which of the following is fastest?
In computer terminology, ROM stands for:
Which of the following memory types is volatile, meaning it loses its content when the power is turned off?
The process of starting or restarting of a computer is called
Storage media such as a CD read and write information using ?
What is the purpose of a Memory Controller in a computer system?
What is the system software?
Which among the following is a device, that is used in computers to add external components?
__________ a range of frequencies within a given band, in particular that used for transmitting a signal. It is usually measured in bits per second, or ...
Which memory management technique allows multiple processes to be stored in memory simultaneously, without having to be contiguous?
Relevant for Exams:
