In one of the mixture of alcohol and water, `30%`, is water. The amount of alcohol that must be added to the mixture, So that the pary of watyer in the mixture becomes `12.5%`, is :

Options

A. 1400ml
B. 1700ml
C. 1300ml
D. 900ml

Answer

A

Explanation

According to question,
In 1000 ml of mixture,
Alcohol `=700ml`
Water `=300ml`
Let x ml of alcohol is mixed
Now, `(300)/(1000+x)xx100=12.5`
`1000+x=2400`
`therefore x=1400ml`