Question
‘X’ and ‘Y’ can do a task together in 15 days. If
‘X’ alone takes 25 days to complete it, then how much time will ‘Y’ take to finish the task alone?Solution
ATQ,
Let total work = 75 units. {LCM (15 and 25)}
Combined efficiency = 75 ÷ 15 = 5 units/day
Efficiency of 'X' = 75 ÷ 25 = 3 units/day
Efficiency of 'Y' = 5 - 3 = 2 units/day
Time taken by 'Y' alone = 75 ÷ 2 = (75/2) days
A company’s network experiences intermittent connectivity issues. Upon analysis, the network technician observes frequent CRC (Cyclic Redundancy Check...
Which of the following is the primary reason for ensuring stationarity in time series data before applying ARIMA models?
Which sampling technique is most appropriate for studying population data divided into well-defined subgroups , where it is essential to ensure proporti...
Which of the following is a key advantage of using box plots over histograms for visualizing data?
Which of the following is the most appropriate algorithmic approach for solving the "Knapsack Problem" where the goal is to maximize the value within a ...
When performing trend analysis for forecasting sales, which of the following methods is most commonly used to identify future trends based on historical...
Which metric would be most indicative of a customer's likelihood of defaulting on a loan, based on historical data analysis?
What is the primary advantage of using a box plot for data visualization?
A data analyst is assessing a dataset with inconsistent categorical entries, such as "USA," "U.S.A," "United States," and "US" for the country field. Wh...
In time series analysis, the Dickey-Fuller test is used to:
