@anshla471
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: A sample of x litres from a container having a 60 litre mixture of milk and water containing milk and water in the ratio of 2: 3 is replaced with pure milk so that the container will have milk and water in equal proportions. What is the value of x? a) 6 litres b) 10 litres c) 30 litres d) None of these
@anshla471
Started 3 weeks ago in
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Consequently, the removal of PC from water and wastewater streams has become an integral component of environmental sustainability. For that, several physicochemical technologies have been proposed for the removal of PC from aqueous streams. In recent decades, one of the promising, cost- effective, and environmentally benign options for removal of PC from water streams is adsorption onto sewage sludge (SS)-based activated carbon (SBAC). This is attributed to the excellent adsorptive characteristics of SBAC and also the approach serves as a strategy for sustainable management of huge quantities of SS that are in continual production globally. SBAC can possess uptake capacity for PC exceeding that of some commercially available Granular activated carbon(s) (GAC). Thus, this option becomes a catalyst for ensuring environmental sustainability, which could allow offsetting increasing cost of sewage sludge waste disposal costs. Recently, as a result of the abundance and diversity of SS, the low cost of SBAC production processes, and ease of operational conditions, SBAC adsorption of PC has been receiving tremendous attention from researchers.What can be inferred regarding SBAC adsorption of PC in the given passage?(A) SBAC adsorption of PC increases the cost of sewage sludge waste disposal costs and enhances ease of operational conditions. (B) SBAC adsorption of PC helps in improving environmental sustainability by eradicating PC and eliminating its mutagepic and carcinogenic toxicity effects. (C) SBAC adsorption of PC works because of the abundance and diversity of SS, which has garnered the appreciation of the researchers. (D) SBAC adsorption of PC not only works on such organic pollutants but also helps in eradicating other inorganic pollutants from industrial wastewater
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cars are bought for a combined price of ₹50,00,000/- and then sold. One 2 of the cars is sold at 1/5th profit whereas the other is sold at 1/5th loss. What is the overall profit/loss percentage if both are sold for the same price? a) Loss of 4% b) Profit of 4% c) LOSS of 2% d) Profit of 2% e) None of these
@anshla471
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Arjuna deposited certain amount in national bank at 6% p.a. for 2 years. The interest was increased to 10% p.a. after 2 years and to 15% p.a. beyond 5 years on the initial amount. If the interest earned after 9 years is Rs. 8262, then find the deposited amount.
@anshla471
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A tank has a capacity of 480 litres. It has 3 pipes: A, B and C. Pipes A and B are inlet pipes filling at the rate of 10 litres per minute and 4 litresper minute respectively. Pipe C is an outlet pipe removing water at the rate of 2 litres per minute. The process to fill the tank is such that the three pipes are turned on alternately, one at a time. First, the pipe A is kept open for 7 minute, then it is closed and pipe B is opened for 1 minute, then it is closed and Pipe is opened for a minute, then it is closed and the process repeats. This process is continued till the tank is completely filled. How many minutes does it take to fill the tank?
@anshla471
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A train crosses a railway station 300 m long in 10 min and crosses a halt 100 m long in 15 min. Find the length of train
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A sailor row a boat in still water at 10 kmph. In upstream sailor takes twice of time to cover the distance d as compared to cover the same distance in downstream. Find the speed of stream
@anshla471
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A tank has an inlet pipe and an outlet pipe. If the outlet pipe is closed then the inlet pipe fills the empty tank in 10 hours. If the outlet pipe is open then the inlet pipe fills the empty tank in 12 hours. If only the outlet pipe is open then in how many hours thefull tank becomes a quarter full
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If a and b are the roots of the equation a * x ^ 2 + bx + c = 0, then the equation whose roots are a + 1/beta and b + 1/alpha is
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In the Annual Sports Meet in a boys' school, the boys present in the meet, when arranged in a solid square, have 16 boys less in the front row, than when arranged in a hollow square 4 deep. Find the number of boys present in the Sports Meet