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Gomti River has become the most polluted river in Uttar Pradesh. Monitoring by the state authorities shows that the water if unfit for even bathing and this has been common knowledge since 2010.
‘A’ alone can complete a work in 15 days. ‘B’ alone can complete the same work in 20 days. If ‘A’ and ‘B’ work together for 5 days, then...
P can do a piece of work in 30 days. Q do the same work in 40 days. R can do it in 35 days. P and R worked for 4 days and handed it to Q. Q worked for s...
A pipe can fill a tank in 14 hours, and B pipe can drain a tank in 21 hours. If a system of N pipes (fill pipes and drain pipes put together) can...
Binny is 20% more efficient than Ankush, while Ankush is 50% more efficient than Raju. If the three of them—Ankush, Binny, and ...
‘A’ can do a piece of work in 8 days. ‘B’ can do 40% of the same work in 16 days. If they work together for the entire time and get paid Rs.1500...
A and B can complete a piece of work in 12 days and 15 days respectively. They start working together, but after 4 days, A leaves. In how many more days...
Nakul can do a piece of work in 12 days; Aaravya is 50% more efficient than Nakul. How much more time does Nakul take than Aaravya to do the same piece ...
X and Y together complete a job in 18 days, while Y alone can do it in 30 days. The ratio of efficiencies of X and Z is 4:5 respectively. What is the ra...
A group of 8 men or 10 women can complete a certain task in 21 days. How many days will it take for a combination of 10 women and 4 men to complete the...
X men can complete the piece of work in 36 days and (X + 35) men can complete the same work in 14 days less than that of days taken by X men. Find the v...
