Question
Pipe ‘A’ and pipe ‘B’, together can fill 20% of
a tank in 5 hours while pipe ‘C’ takes 30 hours to empty it. Pipe ‘A’ and pipe ‘B’ were opened together. After 24 hours, pipe ‘C’ is also opened. Find the total time taken to fill the empty tank this way.Solution
Time taken by pipe ‘A’ and pipe ‘B’, together to fill the tank = 5/0.2 = 25 hours Let the total capacity of tank = 150 units Efficiency of pipe (A + B) = 150/25 = 6 units/hour Efficiency of pipe ‘C’ = 150/30 = 5 units/hour Tank filled by pipe (A + B) in 24 hours = 24 × 6 = 144 units Time taken by all three pipes to fill the remaining tank = (150 – 144)/(6 – 5) = 6 hours Total time taken = 24 + 6 = 30 hours
What is the main function of a chaff cutter in livestock farming?
The land-related reform enacted to protect tenants from eviction and secure their right to cultivate the land is known as:
Chlorine is associated to photosynthesis in production of:
Which of the following statements is/are true?
Statement A: Soil aggregation is promoted by the presence of soil microorganisms.
Statement...
Which method is NOT used for rapid virus detection?
To break the dormancy of seed, a process of scratching, or mechanically altering the seed coat to make it permeable to water and gases is done. It is kn...
Which of the following is a floating weed?
An area of 0.6 ha each of wheat and maize is irrigated daily with a discharge of 2000 litre per minute for a period of 15 hours. Each crop receives 8 cm...
Who is regarded as the father of Indian Green Revolution?
Sunflower is an ..................?
Relevant for Exams:
