Question
Pipe ‘A’ takes 10 minutes to fill a tank. Pipe
‘B’ takes 20 minutes to empty the same tank. If pipe ‘B’ is opened 5 minutes after pipe ‘A’, then find the total time taken to fill the tank in this manner.Solution
Let the capacity of the tank be ‘20’ litres {LCM (10, 20)} Efficiency of pipe ‘A’ = (20/10) = 2 litres/minute Efficiency of pipe ‘B’ = (20/20) = 1 litres/minute Quantity of water filled by pipe ‘A’ in 5 minutes = 5 × 2 = 10 litres Quantity of water to be filled = 20 – 10 = 10 litres Time taken by pipe ‘A’ and ‘B’ together to fill 10 litres of water = {10/(2 – 1)} = 10 minutes Total time taken = 5 + 10 = 15 minutes
To which group do the alkaline earth metals such as radium, barium and strontium belong?
Who among the following coined the term "battery" to describe linked capacitors?
What is the primary purpose of the SEWA Portal introduced by the Indian government?
The principle of regarding the beliefs, values, and practices of a culture from the viewpoint of that culture itself is called
Who is the current Vice President of India?
A new financial inclusion dashboard called ‘Antardrishti’ has been launched and it adopts a multi-stakeholder approach. It is launched by which of t...
What will be the speed of petaFLOP Super computer that India is going to launch to enhance weather forcast at block level?
The National Centre for Polar and Ocean Research (NCPOR) and the Goa University (GU) have successfully synthesized gold nanoparticles (GNPs) using Psyc...
Which schedule was added to the constitution by the 73rd Constitutional Amendment?
The Chipko movement began as a reaction against_____
