Question
Suppose after paying bills and setting aside some money
for retirement, Joana has $130 left to spend on just two goods: concerts and books. For simplicity, we’ll assume concert tickets cost $55 and books cost $10. Which of the following combination of goods could be her utility-maximizing bundle?Solution
To maximise the utility Joana must buy 2 concert ticket and 2 books. (2*55 + 2* 10 = 130). Option 1 and 5 is unattainable for Joana and other options are not as efficient as option B is.
A number is increased by 20% and then decreased by 20%. What is the net effect on the number?
Calculate the percentage contribution of the South branch's total revenue to the company's total revenue over the three years (2021-2023).
84 is divided into two parts in such a way that the fourth part of the first part and the fifth part of the second are in the ratio 1 : 2. The first par...
What is the third proportional to the numbers 12 and 36?
Find the smallest number that is divisible by 4, 6, 10, and 13.
The simple interest on a sum of money is 8/25 of the sum. If the rate of interest per annum is two times of the number of years in numerically. Find the...
The marks (out of 50) of 5 students are: 10, 14, 18, x, 26. The mean is 18. Find x and the standard deviation.
A container has 80 liters of pure milk. 20 liters of milk is removed and replaced with 20 liters of water. Then, 20 liters of the new mixture is removed...
The number of ways to arrange the letters of the word "MISSISSIPPI" is:
Pawan and Bhanu started a business with their investments in the ratio 5:7. After 6 months, Raju joined the business with an inve...
