Question
The rectangular park has a length-to-breadth ratio of
8:7. Its perimeter exceeds the perimeter of a square-shaped park by 40 meters. The side length of the square park is 4 meters less than the breadth of the rectangular park. Determine the area of the rectangular park.Solution
Let, length and breadth of the rectangular park be β8yβ m and β7yβ m, respectively. So, 2 Γ (8y + 7y) β 4 Γ (7y β 4) = 40 30y β 28y + 16 = 40 2y = 24 y = 12 Therefore, area of rectangular park = 56y2 = 8064 m2
Let X and Y be two related variables. The two regression lines are given by x-y+1=0 and 2x-y+4=0. The two regression lines pass through the point:
Which of the following test is used for Multicollinearity?
A firm sells 40 units of commodity X when its price is 10. At what price it will sell 60 units of the commodity if its price elasticity of supply is 0....
The GDPβs (at factor cost) and population sizes of two countries A and B were identical in a particular year. Which of the following statements is the...
In hypothesis testing, failing to reject a false null hypothesis is known as:
Within the AD-AS model, a phenomenon known as stagflation is best represented by a shift in which curve, and with what consequence for the short-run equ...
A "Pigouvian tax" is designed to correct for:
Let the correlation coefficient between X and Y be 0.6. Random variables Z and W are defined as Z=X+5 and W=Y/3. What is the correlation coefficient bet...
For a positively sloped LM curve, which of the following statements is CORRECT?
According to the graph on the right, the equilibrium price in the market before the tax is imposed is