Question
If the sum of upstream and downstream speed is 20 km/hr
and the speed of the current is 5 km/hr. Then find time taken to cover 45 km in downward?Solution
Let the speed of boat in still water be x km/hr. According to the question, => x + 5 + x − 5 = 20 => x = 10 Downstream speed = 5 + 10 = 15 km/hr Required time = 45/15 = 3 hrs
What is the full form of DFD?
Which type of software directly manages the hardware and basic system operations of a computer?
Which rule is for Distribution Independence
Which of the following represents the smallest unit of data in a computer?
Which of the following is not a storage device?
In which memory does the computer store frequently used instructions or data temporarily?Â
Keyboards convert characters to ____________ code.Â
________________ is a communication technology used by some incoming mail servers.
An Email address typically consists of a user id followed by the sign ______?
____________ memory is sometimes used to increase the speed of processing by making current programs and data available to the CPU at a rapid rate.
