Question
‘P’ who is 20% more efficient than ‘Q’ can
finish a work in 15 days. ‘P’ and ‘Q’ start working together, but ‘Q’ leaves after 6 days. The remaining work is completed by ‘P’ alone in ‘y’ days. Find the value of ‘y’.Solution
ATQ,
Time taken by ‘Q’ to complete the work = 1.2 × 15 = 18 days
Let the total work be 90 units
Efficiency of ‘P’ = 90/15 = 6 units/day
Efficiency of ‘Q’ = 90/18 = 5 units/day
Work completed by ‘P’ and ‘Q’ in 6 days = (6 + 5) × 6 = 66 units
Therefore, y = (90 – 66)/6 = 4
What is the main function of an email client?
Which command provides a bilingual environment?
When both sender and receiver of an email are on the same system, what do you need?
What does cloud computing involve?
In LibreOffice Impress, notes for each slide are visible only to whom?
What is the purpose of data encryption in computer security?
What does 'N' stand for in UMANG App?
The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement specialty called:
Which command can change the default permissions for files and directories at creation?
What is the purpose of a CAPTCHA in computer security?
Relevant for Exams:
