Question
In a fixed time, a boy swims thrice the distance along
the current that he swims against the current. If the speed of the current is 11 km/hr, the speed of the boy in still water isSolution
Let the rate of swimming in still water be x km/hr Rate down-stream = (x + 11) km/hr Rate up-stream = (x – 11) km/hr According to the question, (x + 11) t = 3 (x – 11) × t x + 11 = 3x – 33 x = 22 km/hr
Which type of device allows the user to add components and capabilities to a computer system?
Red Line error in MS word
It is designed to help quickly find the commands to complete a task. What is being discussed here?
Computer uses the_________number system to store data and perform calculations.
Which one of the following is not a search engine ?
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gif. jpg, bmp, png are used as extensions for files which store
A computer cannot "boot" if it does not have the ______________.
An E-mail address is composed of :
Protocol to send E-mail –
