1. 8 litres of water is added to 32 litres of a solution containing 20% of alcohol in water. What is the approximate concentration of alcohol in the solution now ?





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  • By: anil on 05 May 2019 02.27 am
    In 32 litres of solution, quantity of alcohol = $$frac{20}{100} imes32=6.4$$ litres => Quantity of water = $$32-6.4=25.6$$ litres On adding 8 litres of water, total solution = $$32+8=40$$ litres => Required % = $$frac{(6.4)}{40} imes100=16\%$$ => Ans - (B)
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