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Let the efficiency of Anand = '5x' units/day Then, total work = 5x X 36 = '180x' units Efficiency of Akash = 5x X 1.4 = '7x' units/day Combined efficiency of Anand and Akash = 5x + 7x = '12x' units/day So, time taken to complete the entire work = 180x ÷ 12x = 15 days Hence, option a.
Which scattering phenomenon is responsible for the primary cause of the blue color of the sky?
Which soil type warms up more rapidly due to lower heat capacity and good thermal conductivity?
Which form of heat transfer involves the actual movement of molecules in a medium?
Which stage of sugarcane is sensitive to water requirement?
Which type of irrigation is most suitable for lands with irregular topography?
Which layer of the atmosphere experiences a decrease in temperature with increasing altitude at a rate of approximately 6.5°C per km?
What is the precipitation type characterized by small pellets of transparent ice, typically 5 mm or less in diameter?
Which category of soil is highly permeable & excessively drained with low water holding capacity thus require more frequent irrigation for successful cr...
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The term 'albedo' primarily indicate?
