Question
Gatiman express train crosses a platform in 20 seconds
while it can cross a pole in 18 seconds. If the speed of the Gatiman express is 30 m/s, then find the length of the platform?Solution
Length of the train = 30 × 18 = 540 metres Let the length of the platform be ‘p’ metres ATQ; p + 540 = 30 × 20 Or, p = 600 – 540 Or, p = 60
While calculating Pearson's correlation coefficient, the following values are obtained for 25 pairs of observations. It was later discovered that two pa...
When the price of a commodity decreases, and its demand curve forms a rectangular hyperbola, what happens to the total expenditure on that commodity?
For a frequency distribution if Coefficient of variation is 5, standard deviation is 2 and Karl Pearson’s coefficient of skewness is 0.5, the value of...
The government provides public goods because
In which of the following market structure Quantity is maximum?
The Fisher Effect assumes that the    Â
The costs of inflation are?
Which of the following Herfindahl-Hirschman Index is most consistent with monopoly?
The fiscal deficit is the difference between the government’s total expenditure and its total receipts excluding ______
