1. [单选题]14 Alpha buys goods from Beta. At 30 June 2005 Beta’s account in Alpha’s records showed $5,700 owing to Beta.
Beta submitted a statement to Alpha as at the same date showing a balance due of $5,200. Which of the following could account fully for the difference?
A. Alpha has sent a cheque to Beta for $500 which has not yet been received by Beta.
B. The credit side of Beta’s account in Alpha’s records has been undercast by $500.
C. An invoice for $250 from Beta has been treated in Alpha’s records as if it had been a credit note.
D. Beta has issued a credit note for $500 to Alpha which Alpha has not yet received.
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)
