20 litres of a mixture contains 20 % alcohol | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In $20$ litres of the initial mixture:Alcohol $= 20 	imes \frac{20}{100} = 4$ litres.Water $= 20 - 4 = 16$ litres.When $4$ litres of water are ad

Vedclass · Accepted Answer

$16 \frac{2}{3} \%$

Vedclass · Answer

(B) In $20$ litres of the initial mixture:Alcohol $= 20 	imes \frac{20}{100} = 4$ litres.Water $= 20 - 4 = 16$ litres.When $4$ litres of water are added:New quantity of water $= 16 + 4 = 20$ litres.New total quantity of the mixture $= 20 + 4 = 24$ litres.The percentage of alcohol in the new mixture is calculated as:$	ext{Percentage} = \left( \frac{	ext{Quantity of Alcohol}}{	ext{Total Quantity of Mixture}} ight) 	imes 100$$	ext{Percentage} = \left( \frac{4}{24} ight) 	imes 100 = \frac{1}{6} 	imes 100 = \frac{50}{3} = 16 \frac{2}{3} \%$.

$20$ litres of a mixture contains $20 \%$ alcohol and the rest is water. If $4$ litres of water are added to it,what will be the percentage of alcohol in the new mixture?

Similar Questions

Gold is $19$ times as heavy as water and copper is $9$ times. In what ratio should these metals be mixed so that the mixture may be $15$ times as heavy as water?

$729 \ ml$ of a mixture contains milk and water in the ratio $7:2$. How much more water is to be added to get a new mixture containing milk and water in the ratio $7:3$? (in $ml$)

Rama mixes $20 \%$ of kerosene to his petrol and then he sells the whole mixture at the price of petrol. If the cost price of the kerosene is $40 \%$ of the $CP$ of petrol,what is the net profit percentage (in $\%$)?

Zinc and copper are in the ratio $5:3$ in $400 \, g$ of an alloy. How much copper (in $g$) should be added to make the ratio $5:4$?

An amount of ₹ $70,000$ was lent at $6 \%$ per annum and the remaining at $4 \%$ per annum. If the total simple interest from both the fractions in $5 \text{ years}$ was ₹ $16,000$,the sum lent at $6 \%$ per annum was (in ₹). (in $,000$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module