Question
‘A’ and ‘B’ can do a piece of work in 20 days
and 25 days, respectively. If they started the work together and worked on it for 4 days, then find the time taken by ‘B’ alone to complete the remaining work.Solution
Let total amount of work be 100 units Efficiency of ‘A’ = 100/20 = 5 units/day Efficiency of ‘B’ = 100/25 = 4 units/day Amount of work done by ‘A’ and ‘B’ together in 4 days = (5 + 4) × 4 = 36 units Time taken by B to complete remaining work = (100 – 36)/4 = 16 days
What does the Exchange Rate Pressure Index (ERPI) measure?
In a study examining the relationship between hours of study (X) and test scores (Y) of students, a bivariate regression analysis was conducted. The fol...
In the context of development economics, a persistent condition known as the poverty trap is often modeled as a stable equilibrium at a low level of inc...
Find the value of Lerner index if P=10 and MR= 5
The two regression lines are 6X+4Y=52 and 12X+6Y=62. Find the correlation coefficient.
...Which growth model inspired the use of the capital-output ratio for development planning?
If equation is over-identified which method is used to estimate?
In a time-series forecasting problem, if the seasonal indices for quarters 1, 2, and 3 are 0.80, 0.90, and 0.95 respectively. What can you say...
Which of the following statements is incorrect?
Relevant for Exams:
