Question
In a bag, the ratio of yellow and orange marbles is 4:5
respectively, and the ratio of orange and purple marbles is 1:3 respectively. If the total number of yellow, orange, and purple marbles is 96, then how many orange marbles are there in the bag?Solution
ATQ,
Let the number of yellow marbles = 4x Then, number of orange marbles = (5/4) × 4x = 5x And, number of purple marbles = (3/1) × 5x = 15x Now, 4x + 5x + 15x = 96 ⇒ 24x = 96 ⇒ x = 96 / 24 = 4 So, number of orange marbles = 5x = 5 × 4 = 20
For the 2 variables x and y with the same mean, the regression equation are y = 5x+b and x=7y +c. Calculate b/c
A central bank decides to increase money supply. For a given price level, the LM curve is expected to
A bag contains 8 Black and 4 White balls. 10 balls were randomly selected from the Bag. What is the probability that out of the 10 balls selected at ran...
Among the following production functions which one is having increasing returns to scale
A rational decision maker does which of the following?
Consider an economy described by the following equations:
C = 100 + 0.6 ∗ (Y − T) (consumption function)
I = 200 − 10...
What is the effective tariff rate on the commodity, when no imported inputs are used?
Suppose the relationship between Y and two explanatory variables in true model is Yi = 5+2.4X1i-3.5X2i + ei . What is the value of beta(1) in the regres...
Find regression coefficient of y on x (byx) if correlation coefficient between x and y values is 0.75 and standard deviation of x and y are 5 and 6.4 re...
