Question
Quantity of water in a 420 litres mixture (alcohol +
water) is 30 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed so that the quantity of alcohol in the mixture becomes 45% of the whole mixture.Solution
Quantity of water in the mixture = (420 – 30)/2 = 195 litres So, Quantity of alcohol in the mixture = (420 – 195) = 225 litres Total quantity of the mixture = 225 x (100/45) = 500 litres Therefore, quantity of water to be mixed = 500 – 420 = 80 litres
Time complexity of heap sort is:
Which type of database key is a candidate key that has not been chosen as the primary key?
Which data structure uses LIFO (Last In, First Out) principle?
In a data warehousing environment, what is the primary purpose of an OLAP (Online Analytical Processing) cube?
- Which of the following is the primary characteristic of Infrastructure as a Service (IaaS) in cloud computing?
Which of the following accurately describes the role of a "foreign key" in a relational database system?
Deletion in Red-Black Trees maintains balance using:
Which SQL command is used to remove only specific rows from a table while preserving the structure and other rows?
In the dynamic programming approach for LCS, the base cases are crucial for correctly initializing the dp table.
Consider the following Python co...
RISC stands for:
