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A bar tender replaces some quantity of alcohol having 40% concentration with water and thus the concentration of alcohol changes to 30%. If the alcohol which he replaced is mixed with another sample of 260 ml alcohol having 20% concentration, then a mixture having 27% concentration of alcohol is prepared. Find the initial quantity of alcohol having 40% concentration.
Two cans of equal volume contains mixture of alcohol and water. In first can, the ratio between the alcohol and water is 3 ∶ 7 and in second can, the ratio between the alcohol and water is 2 ∶ 3. When two cans mixed together, find the ratio of alcohol and water in mixture.
A vessel contains 80 litres of pure alcohol. A certain quantity of water is added to make the ratio of alcohol and water 4 : 1. Some quantity of mixture was removed and 10 liters of water were added to it. If the quantity of water is 20 less than that of alcohol in the resultant mixture then alcohol is what percent of the water in the resultant mixture?
A diluted alcohol contains 16L of alcohol and rest is water. A new mixture in which the concentration of alcohol is 30% is to be prepared by replacing diluted alcohol. How many litres of the mixture shall be replaced with pure alcohol if there was initially 64L of water in the mixture.
When 8 litres of water and 2 litres of alcohol are added to 10 litres of alcohol- water mixture, the ratio of alcohol and water in the mixture becomes 3 ∶ 7. Find the ratio of alcohol and water in the initial mixture.
Two mixtures of alcohol and water are prepared by mixing 10 litres of alcohol with 6 litres of water and 8 litres of alcohol with 2 litres of water. In what ratio the respective mixtures are mixed such that the final mixture contains alcohol and water in the ratio 20 ∶ 9?
A wave is first reflected by a boundary P and then by a boundary Q without dissipating energy. If the boundary P is rigid and the boundary Q is non-rigid, then find the fraction of the amplitude of the reflected wave by boundary P to the reflected wave by boundary Q.
There are two containers contain a mixture of wine, water and alcohol. The first container contains wine, water and alcohol in the ratio of 4 : 3 : 3. The second container contain wine, water and alcohol in the ratio of 1 : 2 : 1. If 1 litre from first and 4 litres from second are mixed into the third container. What fraction of alcohol in third container?
Statement 1: A phase boundary exists between alcohol and oxygen. Statement 2: Phase boundary varies with agitation. It is inversely proportional to the amount of agitation provided.
When 1-liter alcohol is added to the 20-liter mixture of alcohol and water, the quantity of alcohol becomes 50% less than that of water in the mixture. Find the initial ratio of alcohol and water in the mixture?