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Let the total work = L.C.M of 12, 20 and 5 = 60 units Then, combined efficiency of 'A' and 'B' = 60 ÷ 12 = 5 units/day Combined efficiency of 'B' and 'C' = 60 ÷ 20 = 3 units/day Since, 33(1/3) % =1/3 So, time taken by 'A' and 'C' together to complete the entire work = 5 ÷ (1/3) = 15 days So, combined efficiency of 'A' and 'C' = 60 ÷ 15 = 4 units/day Twice the efficiency of 'C' = (3 + 4) - 5 = 2 units/day So, efficiency of 'C' = 2 ÷ 2 = 1 unit/day So, time taken by 'C' alone to complete the entire work = 60 ÷ 1 = 60 days
Which of the following erosion is the removal of soil by running water with the formation of an areas of small branching channels. It can be removed by ...
One kilogram of nitrogen is equivalent to which of the following quantity of urea?
Durgapura Kesar is an important cultivator of:
Which aquaculture technology involves stocking different fish species that are compatible and non-competitive, utilizing various feeding zones of a pond...
Sclerotinia sclerotiorum survives in soil in the form of:
Dapog method of nursery raising is followed in
Which of the following is generally used for reclamation of soil acidity?
According to estimation, how much cultivated area in India will remain rainfed even after reaching the full irrigation potential?
Match set A (instrument) with set B (measured parameter)
The areas suffering from non-availability of ground water due to over exploitation are popular referred to as which of the following?