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High extraction rates, not recharge, lead to water table decline.
X, Y and Z can do a piece of work in 90 days, 40 days and 120 days respectively. If they all work together alternatively starting with X, Y than Z respe...
A task can be completed in 15 days when Akash and Bittu work together. Akash is 30% more efficient than Bittu. If both started the task separately and A...
Aaru Swati and Rajni can finish a work in 4 days if they work together. However, Aaru alone will take 9 days to complete the work, and Swati alone will ...
Anil and Ashish receive Rs.1200 for work of 8 days. If Anil is 5 times efficient than Ashish, then find the daily wage received by Ashish.
'Andy' and 'Ben' together can finish some work in 27 days. If 'Andy' alone can finish it in 45 days, then find the time taken by 'Ben' to finish the wor...
Karan can do 80% works in 40 days. Remaining work completed by Karan and Arjun in 6 days. In how many total days the total work is finish if Arjun work ...
Ishan alone can do a certain piece of work in 'w' days and Bhanumati can do it in '2w' days (w is a positive integer). Both together can do the work in ...
Person 'A' can finish a task in 16 days by working alone. Person 'B', who is twice as efficient as 'A', works on the task alone for 3 days. After that,...