Time taken by A alone to complete the entire work = 24/0.6 = 40 days Time taken by B alone to complete the entire work = 40 + 20 = 60 days Let the total work = L.C.M of 40, 60 and 35 = 840 units Then, efficiency of B = (840/60) = 14 units/day Combined efficiency of B and C = (840/35) = 24 units/day So, efficiency of C alone = 24 – 14 = 10 units/day So, time taken by C alone to complete the entire work = (840/10) = 84 days
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Heroine, one of the major chemicals responsible for drug abuse, is obtained from:
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Substances like phosphorus burns in air at room temperature. This type of combustion in which a material suddenly bursts into flames, without applicati...