Question
The income of ‘A’ increases by 20% every year. If
his income 2 years hence from now will be Rs. 86400, then find his income a year before from now.Solution
Let the present income of ‘A’ be Rs. x Therefore, x(1 + 20/100)2 = 86400 Or, x = 86400/(1.2)3 = 60000 Therefore, his income a year before from now = 60000/1.2 = Rs. 50000
Mixture ‘A’ consists of petrol and acid in a 4:1 ratio, while Mixture ‘B’ contains petrol and acid in a ratio of 5:3. If these two mixtures are ...
Sugar worth Rs. 30/kg and Rs. 45/kg are mixed with a third variety in the ratio 3:2:1 respectively. If the final mixture is worth Rs. 38/kg, then the pr...
Quantity of water in a 250 litres mixture (alcohol + water) is 30 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed...
A mixture containing 120 liters of milk and water has 35% of its volume as water. If 24 liters of pure water are added to this mixture, the difference i...
Sea water contains 5% salt by weight. If you have 40 kg of sea water, how much fresh water must be added to dilute the solution so that the salt concent...
There is 275 litres of mixture of milk and water in a jar. The ratio of quantity of milk to water in the jar is 8:3, respectively. If ‘x’ litres of ...
A container contains Alcohol and water in ratio of 4:3 and Capacity of Container is 28 lit. If half of the Container is replaced with 25 lit of water th...
A mixture contains alcohol and water in the ratio 7:3. If 15 liters of water is added to the mixture, the ratio becomes 7:5. What is the initial quantit...
A and B are mixtures with milk:water 4:1 and 6:7 respectively. When mixed, the final quantity is 0.705 litres, and the final milk to water ratio is 82:5...
420 ml of mixture ‘B’ contains only water and milk in the ratio of 7:13, respectively. If the quantity of milk in mixture ‘A’ is 20% more than t...
Relevant for Exams:
