Question
From a barrel that contains pure alcohol, 10% alcohol is
withdrawn and replaced with water. If the same process is repeated once more, then the quantity of alcohol remaining in the mixture would be 81 litres. Find the final quantity of water in the barrel.Solution
ATQ, Let the initial quantity of alcohol in the barrel be '100x' litres ATQ; 100x X (0.90)² = 81 Or, 81x = 81 Or, x = 1 So, original quantity of alcohol in the barrel = 100 X 1 = 100 litres Required quantity of water = 100 - 81 = 19 litres
A user communicates with a computer with the help of:
Which of the following permanent database that has an entry for each terminal symbol
The component responsible for synchronizing operations using timing signals is _______________. Â
Which of the following file format is not a video file format?
 Recently who among the following was re-elected general secretary of the 20th Central Committee of the Communist Party of China (CPC)?
Which of these are examples of interpreted programming languages? Â
Pre-programmed formulas in MS Excel are called _______. Â
Which of the following technologies were used by third-generation computers?Â
________ is the highest priority interrupt capable of interrupting all software and non-vital hardware devices.Â
Which type of network mostly we build, when two or more branches of an Organisation, situated in different countries, are connected together using inter...
Relevant for Exams:
