Question
Present ages of 'P' and 'Q' are in ratio 5:6,
respectively. If ten years hence from now, age of 'P' will be 25% less than that of 'Q', then find the ratio of present ages of 'P' and 'R' given that 'R' is 7 years older than 'P'.Solution
ATQ, Let the present ages of 'P' and 'Q' be '5x' years and '6x' years, respectively. So, (5x + 10) = (6x + 10) X 0.75 Or, 5x + 10 = 4.5x + 7.5 Or, 0.5x = 2.5 So, x = 5 So, present age of 'P' = 5x = 5 X 5 = 25 years And present age of 'R' = 25 + 7 = 32 years So, required ratio = 25:32 = 25:32
Why is sampling often preferred over using the entire population for data analysis?
What is the primary function of a Decision Support System (DSS) in Management Information Systems?
Which of the following is a key difference between TCP and UDP in the transport layer of the TCP/IP model?
Which of the following best describes the main difference between random and non-random sampling methods?
Which of the following Software Development Life Cycle (SDLC) models is best suited for projects where the requirements are unclear or evolving rapidly?
Which of the following is the primary benefit of using APIs over web scraping for data collection from a website?
In Python, missing values in DataFrame are represented as:
Which of the following best describes the difference between simple moving averages and exponential smoothing in forecasting?
In time series forecasting, which of the following is true regarding the impact of autocorrelation on the model?
In developing a fraud detection model for online transactions, a data analyst should use a technique capable of identifying anomalous patterns. Which of...
Relevant for Exams:
