1. [单选题]A company predicted that the learning rate for production of a new product would be 80%. The actual learning rate was 75%. The following possible reasons were stated for this:
A. (i) The number of new employees recruited was lower than expected
B. (ii) Unexpected problems were encountered with production
C. (iii) Unexpected changes to Health and Safety laws meant that the company had to increase the number of breaks during production for employees
D. Which of the above reasons could have caused the difference between the expected rate of learning and the actual rate of learning?
E. All of the above
F. (ii) and (iii) only
G. (i) only
H. None of the above
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)
3. [单选题]Is the following statement true or false?
解析：The learning rate was actually better than expected and only (i) could cause it to improve.
解析：Statement (ii) is wrong as it reflects the common misconception that the shadow price is the maximum price which should be paid, rather than the maximum extra over the current purchase price.
Statement (iii) is wrong but could be thought to be correct if (ii) was wrongly assumed to be correct.
解析：Where there is a significant change in ownership of the company, ISA 210 Agreeing the Terms of Audit Engagements recommends that a new audit engagement letter is sent to avoid misunderstandings.