Question
In a school, 40% of the students are girls, and the rest
are boys. During the annual sports event, 30% of the girls and 50% of the boys took part. If the number of girls who did not participate is 420, determine the total number of students in the school.Solution
Let the total number of students in school = 100x Number of Girls = 40x Number of Boys = 60x According to question- 70% of 40x = 420 x = 420/28 x = 15 total number of students in school = 100x = 1500
A monopolist sells its product in two separate markets with different price elasticities of demand. The marginal cost of production is constant at $20 p...
As per the Economic survey 2023-24, what percentage of India's economy was accounted for by the services sector in FY24?
Keynes assumed that the price level was fixed because
The utility function of X is such that X likes to consume 2 units of lemon with every 1 liter of water. The price of lemon is Rs.1.00 and that of 1 lite...
The standard deviation of a binomial distribution with parameter n=18 and p=2/3 is
If X and Y are independent random variables and Var(X)=Var(Y)=4, then find Var(2X-3Y+1)?
In the Harrod-Domar model, if the saving rate (s) is 20% and the capital-output ratio (v) is 2, what is the growth rate of the economy?
What is the elasticity of demand given by x=100-50p at price = 10?
Guess an even integer between 1 and 100 that is closest to 1/2 of the mean of the guesses, what will be the equilibrium in that case?
