Postal assistant karnatak circle Government Jobs Exams Numerical Ability

A mixture contains alcohol and water in the ratio
of 5:4. lf 18 L of water is added to the mixture, the
ratio of alcohol and water becomes 4;5. what was
the quantity of alcohol in the mixture initially:

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Postal assistant karnatak circle Other Question
36 me were employed to do a piece of work in 48 days.But it was found that in 24 days only 2/5th of the work is done.How many additional men are to be taken to finish the work in time?