Pipe ‘A’ takes 15 minutes to fill a tank. Pipe ‘B’ takes 30 minutes to empty the same tank. If pipe ‘B’ is opened 13 minutes after pipe ‘A’, then find the total time taken to fill the tank in this manner.
Let the capacity of the tank be ‘30’ litres {LCM (15, 30)} Efficiency of pipe ‘A’ = (30/15) = 2 litres/minute Efficiency of pipe ‘B’ = (30/30) = 1 litres/minute Quantity of water filled by pipe ‘A’ in 13 minutes = 13 × 2 = 26 litres Quantity of water to be filled = 30 – 26 = 4 litres Time taken by pipe ‘A’ and ‘B’ together to fill 4 litres of water = {4/(2 – 1)} = 4 minutes Total time taken = 13 + 4 = 17 minutes
Which sector is targeted by the ₹1129.30 crore Sustainable Development of Horticulture scheme?
From which archaeological site is evidence of the earliest known earthquake found?
In what year was the World Wide Web (WWW) created by Tim Berners-Lee?
Which mineral resource is predominantly found in the Kuzbass Basin of Russia?
What is the theme country for the International Kolkata Book Fair 2018?
बनास नदी पर कौन -सा बाँध है -
Which ministry has launched the 'Vishvasya-Blockchain Technology Stack'?
Which committee recommended the inclusion of Fundamental Duties in the Indian Constitution?
How much foreign direct investment (FDI) did India attract in Q1 FY25 according to the government?
Under a central government scheme, every Member of Parliament (MP) is granted Rs. 5 crore annually for the development of their constituency. Name the ...
