Question
Two vessels 'A' and 'B' contains 480 litres, each of
pure milk and pure water, respectively. 120 litres of milk is withdrawn from vessel 'A' and poured in vessel 'B'. Again, 120 litres of mixture is poured from vessel 'B' to vessel 'A'. Find the ratio of quantity of milk remaining in vessel 'A' to quantity of water remaining in vessel 'B'.Solution
Quantity of milk remaining in vessel 'A' after 120 litres of milk is withdrawn = 480 - 120 = 360 litres Ratio of quantity of milk to that of water in vessel 'B' after 120 litres from vessel 'A' is mixed with it = 120:480 = 1:4 So, quantity of water remaining in vessel 'B' after 120 litres of mixture is withdrawn = 480 - {120 X (4/5)} = 384 litres And, quantity of milk in vessel 'A' after 120 litres of mixture is added = 360 + {120 X (1/5)} = 384 litres So, required ratio = 384:384 = 1:1
Which of the following best explains the role of an independent variable in data analysis?
In R, which function from the ggplot2 package would be best suited for creating a scatter plot with different colors representing different categories?
In SQL, which of the following best describes the role of a subquery within a SELECT statement?
Which sampling technique is best suited for dividing a population into distinct subgroups and ensuring each subgroup is proportionally represented?
In a machine learning experiment, the company wants to predict future sales based on advertising spend. What is the dependent variable in this scenario?
Which data collection method is best suited for obtaining real-time data from a third-party application?
Given the following SQL query:
SELECT department _ id, COUNT(*) AS employee _ count
FROM employees
GROUP BY department_id
HA...
In Power BI, which feature allows the creation of dynamic and customized summaries of data by dragging and dropping fields into a table-like structure?
Which statistical method is most suitable for quantifying the strength and direction of a linear relationship between two continuous variables?
...Deadlock prevention in operating systems can be achieved by ensuring which of the following conditions does NOT hold?