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  • 1.  Learning Curve Calculation

    Posted 06-12-2019 09:23 PM
    I find difficulty every time I try to solve this problem, although I see the answer but still I don't get it. This is about learning curve. Please anyone will explain to me in different way.
    A mfg company required 800 DLH to produce the first lot of four units of a new motor.Management believes that a 90% Learning Curve will be experienced over the next four lots of production. How many DLH will be required to manufacture the next 12 units?

    The answer is:
    Batch 1 = 800/ 4 units = 200 DLH per unit
    Batch 2 = ( 800 x.9)/ 4 units =180 DLH per unit
    Batch 4 = (1440 x .9)/ 8 units = 162 DLH per unit
    Hours for next 12 units = (162 x16)- 800 for the first of 4 units
                                        =1792 hours

    The ones I don't get it are batch 4 and hours for next 12 units.

    Thank you!

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    Jenny Turnham
    Student
    Brooklyn Park MN
    United States
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  • 2.  RE: Learning Curve Calculation

    Posted 06-13-2019 08:39 AM
    An easier/alternative way to think about it would be this way:
    the learning curve applies to each doubling in production (1, 2, 4, 8, etc.).
    it takes 800 hours for the first batch of 4 units.
    it should take on average 720 (800*.9) hours for the first 2 batches (total 8 units).
    it should then take 648 (720*.9) hours on average for the first 4 batches (16 units).
    648 hours*4 batches = 2,592 total hours for the first 4 batches or 16 units.
    "the next 12 units" basically asks how long it would take to produce the next 3 batches, above the first batch.
    2,592-800 hours for the first batch = 1,792 additional hours

    that is the way I remember how it works, hopefully it eases your concerns. The way they provided the answer was a little more confusing.

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    Nicholas Tsirigos
    United States
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  • 3.  RE: Learning Curve Calculation

    Posted 06-15-2019 04:10 PM
    Thanks Nicholas for the explanation. I get it now. Thank you.

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    Jenny Turnham
    Student
    Brooklyn Park MN
    United States
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  • 4.  RE: Learning Curve Calculation

    Posted 06-13-2019 09:30 AM
    this solution could help you 

    first deal with it as the basis of no. of lots 
    the next 12 units is the next 3 lots because each lot contains 4 units

    so :
    no. of lots                                 average DLH per lot 
    1                                                      800
    2                                                  (800*0.9)=720
    4                                                  (720*0.9)=648


    so total DLH for the first 4 lots= 648*4=2592

    since the first lot requires 800 DLH 
    THE NEXT 3 LOTS REQUIRES 2592-800=1792


    which is the next 12 units 


    hope u got it 





  • 5.  RE: Learning Curve Calculation

    Posted 06-15-2019 04:11 PM
    Thank you Hassan and everyone who replied to me personally for all your kindness. Now it is clear as a sky for me regarding this topic. Thank you.

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    Jenny Turnham
    Student
    Brooklyn Park MN
    United States
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