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Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA PM Exams › Learning Curve
The first unit of a new product is expected to take 100 hours. An 80%
learning curve is known to apply.
Calculate:
(a) the average time per unit for the first 16 units
(b) the average time per unit for the first 25 units
(c) the time it takes to make the 20th unit
I tried solving it with the Tabular approach. and the answers were same as the algebraic approach. The question is, it was asked to be solved using algebraic, but what if we just solve the question with tabular approach instead of using algebraic in the exam? Answers were same. The tabular approach just takes a little long time but it’s less confusing.
Questions in the exam will not specify the approach to take.
For part (a) of the question you have typed, then certainly use the doubling rule.
Parts (b) and (c) do not involve doubling and for these parts you have no choice but to use the formula.
I suggest that you watch my free lectures on learning curves. The lectures are a complete free course for Paper PM and cover everything needed to be able to pass the exam well.