Question
In a mixture of alcohol and water contains ‘3a’
liters alcohol and (a + 40) liters water. On adding 20 liters more water, the ratio of quantity of water to that of alcohol in the mixture becomes 2:3. How much water should be added in the resultant mixture to further decrease the % of quantity of alcohol in the mixture to 50%?Solution
ATQ; we can say that [(3a)/(a + 40 + 20)] = (3/2) Or, 6a = 3x + 180 Or, 3a = 180 So, a = 60 So, quantity of alcohol present in the mixture = 60 × 3 = 180 liters And quantity of water present in the mixture = (60 + 40 + 20) = 120 liters So, quantity of mixture after more water is added = (180 ÷ 0.5) = 360 liters So, quantity of water to be added = 360 -300 = 60 liters
Which of the following is a default connector for Shielded twisted pair?
Which protocol is used to dynamically assign IP addresses to devices on a network?Â
In a multithreaded environment, which of the following synchronization mechanisms is used to prevent race conditions?Â
State True or False
Semi-structured data  is data that does not conform to a data model but has some structure. It lacks a fixed or rigid sc...
What is Computer Output Microfilm (COM) primarily used for in data management and archival systems?
Fill in the correct option for 28 blank space.
There is a BST and below is the Pre order of the BST, What will be it’s In order
150 70 60 80 250 200 350
In a virtual memory system, which of the following techniques is used to maintain the illusion that each process has its own dedicated memory space?Â
Which of the following scenarios best demonstrates a potential use of candidate keys in a relational database?Â
What is the primary purpose of the Banker's Algorithm in operating systems?
Relevant for Exams:
