Let the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 11x km/hr Upstream speed of the boat = 11x – x = 10x km/hr Downstream speed of the boat = x + 11x = 12x km/hr According to the question, 12x – 10x = 20 => 2x = 20 => x = 10 Therefore, upstream speed of the boat = 10x = 100 km/hr Required time taken = 200/100 = 2 hours
Which of the following best describes the seasonal component in time series data?
How can predictive analysis significantly enhance healthcare outcomes?
Which statistical method is most suitable for quantifying the strength and direction of a linear relationship between two continuous variables?
...Which of the following best differentiates random sampling from non-random sampling techniques?
A data analyst is tasked with presenting findings on customer churn to the executive team. Which technique would be most effective for ensuring the team...
A data analyst at an insurance company is tasked with assessing the probability of fraudulent claims by analyzing customer transaction data and claim hi...
A retail company is facing declining sales over the last three quarters. As a data analyst, what is the first step in identifying the business problem t...
A logistics company wants to reduce delivery delays using predictive analysis. What should they focus on?
A team leader requests a dashboard to display key performance indicators (KPIs) for the sales department. What is the most important consideration when ...
Which of the following is a key difference between TCP and UDP in the transport layer of the TCP/IP model?
