Problem on mixing two quantity in a mixture.

A vessel contains a mixture of O_(2 )and N_(2) . The quantity of O_(2) is 16% of total mixture. Some quantity of mixture taken out from it and replaced by N_(2) . This process is repeated once more. Now the quantity of O_(2) is 9% of total mixture. If total quantity of mixture was 8 lt , then find the quantity of mixture which is taken out.

Given below are two quantities named I and II. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose among the possible answers. Quantity I: In a mixture of 80 litre, Milk and water are in the ratio of 7 : 1. If 30% of the mixture is taken out, Find the quantity of the water left in the mixture. Quantity II: 7 litre

In a mixture the ratio of liquid A and liquid B is 3 ∶ 2. If 5 litre mixture is drown out and in final mixture the quantity of liquid A is 12 litre more than liquid B, then find the initial quantity of liquid A in the mixture.

There are two mixtures of honey and water, the quantity of honey in them being 25% and 75% of the mixture. If 2 gallons of the first are mixed with three gallons of the second, what will be the ratio of honey to water in the new mixture?

Two vessels contain mixture of milk and water in the ratio of 1:3 and 3:5 to be mixed to get a new mixture in which the ratio of milk to water is 1 : 2 . In what ratio should quantities of mixtures be taken from vessels.

90% and 97% pure acid solutions are mixed to obtain 21 litres of 95% pure acid solution. Find the quantity of each type of acids to be mixed to from the mixture.

90 % pure and 97% pure acid solutions are mixed to obtain 21 litres of 95 % pure acid solution. Find the quantity of each type of acid to be mixed to form the mixture.