1. [单选题]19 What is the company’s return on shareholders’ equity?
A. 15/40 = 37·5%
B. 20/100 = 20%
C. 15/100 = 15%
D. 20/150 = 13·3%
2. [单选题]C Co uses material B, which has a current market price of $0·80 per kg. In a linear program, where the objective is to maximise profit, the shadow price of material B is $2 per kg. The following statements have been made:
A. (i) Contribution will be increased by $2 for each additional kg of material B purchased at the current market price
B. (ii) The maximum price which should be paid for an additional kg of material B is $2
C. (iii) Contribution will be increased by $1·20 for each additional kg of material B purchased at the current market price
D. (iv) The maximum price which should be paid for an additional kg of material B is $2·80
E. Which of the above statements is/are correct?
F. (ii) only
G. (ii) and (iii)
H. (i) only
I. (i) and (iv)
