Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA AFM Exams › Tippletine Mar/Jun 2018. Ke?
- This topic has 12 replies, 3 voices, and was last updated 3 years ago by John Moffat.
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- May 20, 2021 at 7:44 pm #621237
I seem to have worked this out but forgot it again while revising, looked at my notes couldnt find it
10.5 remains as it is
2.28 i got by multiplying 240.8/400 with post tax KD of 3.78%
I am getting 0.42 by multiplying 240.8/400.
How do i make 0.42 to 1.42. Missing the magic additional 1
May 20, 2021 at 7:54 pm #621249above in reference to the archive post i found which is showing in the list again
May 21, 2021 at 9:31 am #621288It is using the MM Proposition 2 formula.
10.5 = ke + 0.7 x (ke – 5.4) x (240.8/400)
10.5 = ke + 0.7 x (ke – 5.4) x 0.602
10.5 = ke + 0.42ke – 2.28
12.78 = 1.42ke
May 21, 2021 at 10:33 am #621310How did 0.42 become 1.42 please ?
May 21, 2021 at 12:30 pm #62131610.5+2.28 =1* ke+0.42*ke
12.78 = ke*(1+0.42)
12.78 = 1.42ke
May 21, 2021 at 1:29 pm #621321from where is the digit 1 originating in the equation?
May 21, 2021 at 2:55 pm #621340dilnoza90: Please do not answer in this forum because it is the Ask the Tutor Forum and you are not the tutor (but please do help people in the other Paper AFM forum 🙂 )
May 21, 2021 at 2:56 pm #621341Ke + 0.42Ke = 1.42 Ke as dilnoza90 has explained.
May 21, 2021 at 5:40 pm #621356Ke is unknown, how it is 1?
May 21, 2021 at 5:56 pm #621357ok so i have solved 3 similar questions and noticed we simply add 1 everytime.
May 22, 2021 at 8:04 am #621390We add 1, not because it is some special rule but because it is basic algebra.
You must have learned at school that, for example, 2x + 3x = 5x, or that 4x + 7x = 11x.
Similarly, x + 3x = 4x.
This is no different except that instead of x we have Ke.
So Ke + 3Ke = 4Ke.
Or in this example, Ke + 0.42Ke = 1.42Ke
May 22, 2021 at 8:31 am #621400ok, i was weak in complex maths so dont recall, was comfortable with finding one x not two. either way without understanding the equation which is a daunting task itself in my opinion, ill simply remember to add 1.
May 22, 2021 at 8:33 am #621402Ok 🙂
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