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.
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
Which of the following is/are true in regards to National Quantum Mission (NQM):
1. Nurture and scale up scientific and industrial R&D Quantum Te...
When and how long is the 'Har Ghar Tiranga' campaign being organized?
Who has been appointed as the Chairman of GIFT City Ltd, the entity responsible for developing India’s first smart city Gujarat International Finance-...
On 29th May 2023, who was sworn in as the Central Vigilance Commissioner (CVC)?
Which of the following leaf modifications occur (s) in the desert areas to inhibit water loss?
1. Hard and waxy leaves
2. Tiny leaves<...
Consider the following statements about Propane:
1. Recently, SAIL has inked a 15-year agreement BPCL to supply propane.
2. It is produced...
Under the rule of which Viceroy did Rajagopalachari present the C.R. Formula?
Gati Shakti University, Vadodara has signed an MoU with whom?
On which part of the body is the ornament called "Baladang" typically worn?
According to the United Nations, in the last 15 years, India lifted how many million people out of poverty?