• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Free ACCA & CIMA online courses from OpenTuition

Free ACCA & CIMA online courses from OpenTuition

Free Notes, Lectures, Tests and Forums for ACCA and CIMA exams

  • ACCA
  • CIMA
  • FIA
  • OBU
  • Books
  • Forums
  • Ask AI
  • Search
  • Register
  • Login
  • ACCA Forums
  • Ask ACCA Tutor
  • CIMA Forums
  • Ask CIMA Tutor
  • FIA
  • OBU
  • Buy/Sell Books
  • All Forums
  • Latest Topics

20% off ACCA & CIMA Books

OpenTuition recommends the new interactive BPP books for March and June 2025 exams.
Get your discount code >>

quantitative analysis

Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA PM Exams › quantitative analysis

  • This topic has 6 replies, 2 voices, and was last updated 7 years ago by John Moffat.
Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • October 5, 2017 at 8:00 pm #409587
    kengara
    Member
    • Topics: 197
    • Replies: 107
    • ☆☆☆

    Hi My Dear Tutor, I have a question.

    example 2 In your open tuition lecture note’s quantity analysis chapter,it says how long will it take to produce an extra 7 units?

    Doubling method.

    Total time for 8 units—–337.5
    total time for 1 unit—-(100)
    total time for 7 units–237.5

    when i did it by using log method it gave me 312.141 why i do not get the same answer with doubling?the same thing i also checked in example 3 for 15 bathches, i used doubled method and log method

    total time for 16 bathces—1670.416

    total time for 1 batche—(200)
    total time for 15 batches——–1470.416

    with log method i got 1589.90

    October 5, 2017 at 8:02 pm #409590
    kengara
    Member
    • Topics: 197
    • Replies: 107
    • ☆☆☆

    could you explain why i get different answers .

    thanks in advance

    October 6, 2017 at 6:20 am #409612
    John Moffat
    Keymaster
    • Topics: 57
    • Replies: 54664
    • ☆☆☆☆☆

    I have no idea why you are getting different answers – you must be using the formulae wrongly.

    The formula gives exactly the same answer (in the second case there is a tiny difference – 1670.26 instead of 1670.42 – but this is simply due to rounding and is irrelevant).

    Are you remembering that b is all cases is negative?

    October 6, 2017 at 8:03 am #409619
    kengara
    Member
    • Topics: 197
    • Replies: 107
    • ☆☆☆

    Yes log 0.85/log2= -0,0705810743/0.3010299957=-0,2344652537
    ———————-average time per unit
    15*———105.9930673=1589.8960095

    y=200*15^-0.2344652537=105.9930673

    October 6, 2017 at 2:46 pm #409671
    John Moffat
    Keymaster
    • Topics: 57
    • Replies: 54664
    • ☆☆☆☆☆

    To get the average time per batch for 16 batches, it is 200 x 16^-0.2345, which is 104.39

    So the total time for 16 batches = 16 x 104.39 = 1670

    October 6, 2017 at 4:57 pm #409686
    kengara
    Member
    • Topics: 197
    • Replies: 107
    • ☆☆☆

    if use only 15 batches why i do not get the same answer?

    October 7, 2017 at 7:49 am #409721
    John Moffat
    Keymaster
    • Topics: 57
    • Replies: 54664
    • ☆☆☆☆☆

    They have already made 1 batch and so if they make another 15 then they will then have made 16. So the time for the next 15 is the total time for 16 less the time for the first.

    The more they have already made, then the faster it will be to make more.

    I explain all this in my lecture.

  • Author
    Posts
Viewing 7 posts - 1 through 7 (of 7 total)
  • The topic ‘quantitative analysis’ is closed to new replies.

Primary Sidebar

Donate
If you have benefited from our materials, please donate

ACCA News:

ACCA My Exam Performance for non-variant

Applied Skills exams is available NOW

ACCA Options:  “Read the Mind of the Marker” articles

Subscribe to ACCA’s Student Accountant Direct

ACCA CBE 2025 Exams

How was your exam, and what was the exam result?

BT CBE exam was.. | MA CBE exam was..
FA CBE exam was.. | LW CBE exam was..

Donate

If you have benefited from OpenTuition please donate.

PQ Magazine

Latest Comments

  • nabeelafatima on Using Information Systems – ACCA Performance Management (PM)
  • John Moffat on Irrecoverable Debts and Allowances Example 3 – ACCA Financial Accounting (FA) lectures
  • Fangzi on The cost of capital (part 1) – ACCA (AFM) lectures
  • Coffeeice6 on What is Assurance? – ACCA Audit and Assurance (AA)
  • khalid.zaheer on Irrecoverable Debts and Allowances Example 3 – ACCA Financial Accounting (FA) lectures

Copyright © 2025 · Support · Contact · Advertising · OpenLicense · About · Sitemap · Comments · Log in