Question
A boy can swim a certain distance downstream in 5 hours
and return in 7 hours. If the rate of stream is 3 kmph then what is the speed of boy in still water?Solution
Let the speed of the boy in still water be x kmph. Then, (x + 3) × 5 = (x – 3) × 7 => 5x + 15 = 7x - 21 => 2x = 36 => x = 18 kmph
Trackball is a...........
________________ is a communication technology used by some incoming mail servers.
…………….are used to identify a user who returns to a Website
The process of transferring files from a computer on the Internet to your computer is called
A _______ is a networking device that filters network traffic while connecting multiple computers or communicating devices.
Which of the following shortcut key save the open document in MS Word like ‘Ctrl + S’?
A set of possible data values is called
If you wish to extend the length of the network without having the signal degrade, you would use a _______.
.............. file format used for data compression and archiving
Which of the following refers to the temporary storage location used for cut, copy and paste?
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