Question
A tank has two inlet pipes, A and B, and one outlet
pipe, C. Pipe A can fill the tank in 6 hours, and pipe B can fill the tank in 8 hours. Pipe C can empty the tank in 12 hours. If all three pipes are opened simultaneously, how long will it take to fill the tank completely?Solution
Work done by Pipe A in 1 hour = 1/6 Work done by Pipe B in 1 hour = 1/8 Work done by Pipe C in 1 hour = -1/12 (negative because it empties the tank) Net work done in 1 hour = (1/6) + (1/8) - (1/12) = (4/24) + (3/24) - (2/24) = 5/24 Time to fill the tank = 1 / (5/24) = 24/5 = 4.8 hours = 4 hours 48 minutes Correct Option: b
In banana bunch management, the practice of ‘propping’ is used for what primary purpose?
"Pitcher Irrigation" is an ancient method especially useful for:
Pre-cooling of fruits and vegetables is typically done at what temperature range?
What is a major advantage of using seed trays?
Which of the following methods is used to determine the field capacity of a soil in laboratory conditions?
The pineapple, a commercially important tropical fruit, is believed to have originated in which country?
Which state in India has the highest area under protected cultivation?
The commercial propagation of 'Saffron' is done through:
The primary use of Isabgol (Plantago ovata) husk is:
The “suckers” used for propagation of tuberose originate from which part of the plant?
Relevant for Exams:
