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hi sir I was wondering if you could help me with this short question please
The following is given regarding a company’s production output and total time:
Output Total time (hours)
1 100
2 160
4 256
8 410What is the learning rate?
a. 90%b. 85%
c. 80%
d. 75%
Also I always struggle wit finding percentages of learning rate. Could you please guide me how to do such questions perhaps if there is a rule or formula to do such questions.
thank you so much in advance
kind regards
The average time per unit when they make 2 units is 160/2 = 80
So if r is the learning rate, then 100 x r = 80, so r = 0.8 or 80%(You can check with the others also. The average time per unit when they make 4 units is 256/4 = 64. So 100 x r^2 = 64, so r = 0.8.
Similarly for 8: 100 x r^3 = 410/8, so r = 0.8)Thank you so much sir. Also I was wondering how would we knowvthat our mix and yield variance question answers in past paper questions are correct sincevthere are two different methods to solve them? What if our answer differs from examiner answers say for papers prior to year 2009?
Regards
The examiner has made it clear that she will accept either method (even though they result in different answers).
The method used in our free lectures (and the Lecture Notes that go with them) is the method that the current examiner uses.
If you are using a current edition of a Revision/Exam Kit from one of the ACCA approved publishers, then they have updated their answers to old questions to that used by the current examiner.
(and as is written throughout this website, it is vital that you have a current edition of a revision kit because question practice is so vital, and they have lots of exam-standard questions to practice on – both Section A and Section B type questions)
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