A) 36 litres
B) 32 litres
C) 40 litres
D) None of these
Correct Answer: C
Solution :
In the original mixture, Alcohol = 5x litres Water = 4x litres On adding 18 litres of water, \[\frac{5x}{4x+18}=\frac{4}{5}\] \[\Rightarrow \] \[25x=16x+72\] \[\Rightarrow \] \[25x-16x=72\Rightarrow 9x=72\] \[\Rightarrow \] \[x=72\div 9=8\] Quantity of alcohol \[=5x=5\times 8=40\]litresYou need to login to perform this action.
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