1.

3 Litre Of Water Is Added To 11 Litre Of A Solution Containing 42% Of Alcohol In The Water. The Percentage Of Alcohol In The New Mixture Is?

Answer»

We have a 11 litre solution containing 42% of ALCOHOL in the WATER.

=> Quantity of alcohol in the solution =11×42/100

Now 3 litre of water is ADDED to the solution.

=> Total quantity of the NEW solution = 11 + 3 = 14

Percentage of alcohol in the new solution =11×42/100/14×100

=11×3/100=33%.

We have a 11 litre solution containing 42% of alcohol in the water.

=> Quantity of alcohol in the solution =11×42/100

Now 3 litre of water is added to the solution.

=> Total quantity of the new solution = 11 + 3 = 14

Percentage of alcohol in the new solution =11×42/100/14×100

=11×3/100=33%.



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