You own a portfolio that has $2,800 invested in Stock A and $3,250 invested in Stock B. The expected returns on these stocks are 14.7 percent and 9.3 percent, respectively. What is the expected return on the portfolio? a) 12.06 percent
b) 11.13 percent
c) 11.80 percent
d) 11.41 percent
e) 12.36 percent

c) 11.80 percent

Explanation:

Particulars  Amount invested    WTS      Expected return   Portfolio return

Stock A             2,800               0.4628         14.7%                      6.80%

Stock B              3,250              0.5372          9.3%                       5.00%

                          6,050                  1                                                11.80%

WTS

A = 2,800/6050 = 0.4628

B = 3,250/6050 = 0.5372

i might look it up later.

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.