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    • Profile photo of Shahir says

      Sir my Question may be silly for U, but I really need an answer… I somehow want to get a world prize for any units in ACCA…
      Sir How hard should I work?… Im ready to study even 10hrs a day
      Sometimes things are forgetting especially F1 notes….
      Its not sticking into the mind..
      Pls help me sir, How did u manage these constraints?

      • Profile photo of John Moffat says

        The best and only advice I can give you is practice. You must have Revision/Exam Kits from one of the approved publishers (they contain lots of exam-standard questions) and you must practice and practice and practice.
        When you are confident that you can get the questions right, then you must practice them again under time pressure.
        With the first three papers, one of the biggest problems is the time pressure in the exam – it is when you are rushing in the exam that you misread questions and make silly mistakes, however good you may be at the subject.

  1. Profile photo of John Moffat says

    You are correct that the total loss is 15%, but it is 15% of the input (not the output).

    So….for every 100 litres input it would mean 15 are lost and therefore 85 are output.
    Or (putting it the other way round) for every 85 output there must be 100 input.

    For 340 output therefore, the input must be 340 x 100/85 = 400 litres.
    Now you will find it works :-)

    Hope that helps!

  2. avatar says

    Hi, I am practicing some questions and I got stuck at this particular one. It seems easy but I am not confident if my ans was right.

    “A company needs to produce 340 litres of chemical X. There is a normal loss of 10% of the material input into the process. During a given month, the company did produce 340 litres of good production although there was an abnormal loss of 5% of the material input into the process. How many litres of material were input into the process during the month?”

    a) 357 litres
    b) 375 litres
    c) 391 litres
    d) 400 litres

    I tried doing it backwards by using 340 x 1.15 = 391. But when I used 391 x 0.75, the ans (output) does not tally to 340. Pls help!

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