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In ΔABC ∠C = 180∘ − 30∘ − 90∘ ∠C = 60° Now, sin 60∘ = AB/AC √3/2 = AB/18 ⇒ AB = 9√3
In a mixture containing a certain quantity of pure alcohol, 20% of the alcohol is removed from the container and replaced with an equal amount of water....
A container holds 1280 litres of a milk and water mixture in the ratio of 9:7. Then, 320 litres of this mixture is removed and replaced with an equal a...
Mixture ‘A’ contains 80% acetone and rest 30 litres water. Mixture ‘B’ contains 72 litres acetone and rest 50% water. When two m...
450 ml of a mixture contains milk and water in the ratio of 15 respectively. If 70 ml of water and 80 ml of milk are added into it, then the ratio of mi...
Mixture 'A' consists of milk and water in a ratio of 7:8, while mixture 'B' contains milk and water in a ratio of 3:2. When these two mixtures are combi...
A fuel tank at a depot has a capacity of 500 liters. The attendant sells 50 liters of diesel to one customer and then refills the...
Lala has lent Rs. 30,000 to Murali and Bansi at 7% p.a. and at 11% per annum respectively. At the end of the year, he has gained an overall interest at...
Mixture ‘X’ contains 50% alcohol and the rest 40 litres of water. 150 litres of mixture ‘Y’ contains alcohol and water in the ratio 5:10, respec...
Two types of Pulses costs Rs. 240/kg and Rs. 340/kg. In what ratio should these be mixed so that obtained mixture sold at Rs. 324/kg to earn a profit of...
