Question
Pipe ‘A’ can fill a tank in 20 hours while pipe
‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 15 hours pipe ‘B’ is also opened. In how much time will the tank get filled completely?Solution
Let the total capacity of the tank be 60 units Efficiency of pipe ‘A’ = 60/20 = 3 units/hour Efficiency of pipe ‘B’ = 60/30 = 2 units/hour Tank filled in 15 hours = 15 × 3 = 45 units Therefore, required time taken to fill the remaining tank = (60 – 45)/(3 – 2) = 15 hours Therefore, total time taken = 15 + 15 = 30 hours
Which regulatory body has approved the stake acquisition in climate technologies' business of Emerson Electric Co by BCP Emerald Aggregator LP?
Who has been appointed as the Managing Director of Indraprastha Gas Ltd. (IGL) in June 2023?
Recently seen in the news. Klyuchevskoy volcano is located in which country:
Where is the World Bank headquarters located?
Who won the Sahitya Akademi Award 2022 for Assamese language?
What was the year of establishment for the 'Fast Track Court' in Uttarakhand?
The purple frog, also known as pignose frog is endemic to which part of India?
Which Indian cyclist recently won a bronze medal in the elite men's keirin event at a cycling competition in Germany?
Which of the following rivers originates from a hot water source?
Which tribal community celebrates the festival called Sohrai, derived from the paleolithic age word 'soro'?
