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ATQ,
Let the total task = 120 units (LCM of 20, 24 and 30) Amount of task done by P alone in one day = 120/20 = 6 units Amount of task done by Q alone in one day = 120/24 = 5 units Amount of task done by R alone in one day = 120/30 = 4 units Amount of task done by all of them together in 4 days = 4 × (6 + 5 + 4) = 60 units Amount of task done by Q alone in 3 days = 3 × 5 = 15 units Amount of task done by Q and R together in middle = 120 – 60 – 15 = 45 units Time taken by Q and R together to complete 45 units task = 45/ (5 + 4) = 45/9 = 5 units So total time taken to complete the task = 5 + 4 + 3 = 12 days
Non impact printer
Which shortcut key is used to switch between two open applications?
In computers which of the following are the shortkeys for paste?
The term used for the programme that cannot be delayed or ignored and should process by the processor immediately?
Which memory type retains its data even when the power is turned off?
Which of the following is not a storage device?
What is the process we called to change the name of a file?
A Proxy server is used for which of the following?
The first generation computers had __________.
____________ deletes all the files that it infects.