Question
A pipe fills a tank in 20 hours, and another pipe
empties it in 30 hours. If both pipes are opened together, how long will it take to fill the tank?Solution
The rate of the filling pipe is 1/20. The rate of the emptying pipe is 1/30. Net rate = (1/20 - 1/30) = 1/60. Time taken = 60 hours. Correct Option: d) 60 hours
First Ram chips was introduced in the early 1979s by which of the following?
____________ Â is the attempt to obtain sensitive information such as usernames, passwords, and credit card details (and money), often for malicious ...
___________ connects multiple LANs to one another over great geographic distances.
What is the full form of OCR?
Apple likes to name versions of Mac OS X after big cats. Which cat was version 10.3?
Process of carrying out commands is calledÂ
In database, a fields is a
Apple likes to name versions of Mac OS X after big cats. Which cat was version 10.3?
The system of satellites used to determine any position on the Earth is known as:
Booting is a process to
Relevant for Exams:
