Two equal vessels A and B contain 70% of milk and 60% of milk respectively and the remaining sugar. In which 30 kg of mixture is taken out from vessel A and replaced into vessel B. Find the initial quantity of vessel B if the final ratio of milk and sugar in vessel B is 9:5.
Vessel A milk and sugar ratio = 7:3 Vessel B milkand sugarratio = 3:2 Given, (3x+21)/(2x+9) =9/5 15x+105=18x+81 3x=24 x=8 Initial quantity = x*5=40 litres
The intersection of the demand and supply curves indicates the equilibrium:
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