PEV June 2008 Paper Q 1.3
columbia
Registered Posts: 580
Hi
I am trying to self teach myself the dreaded PEV, a subject I do not think that I will ever fully grasp.
I am working on the above paper and I have hit a wall on question 1.3.
The question gives an estimate on asphalt for the next 3 months.
The equation is Y = a + bX where
X is the time period in months
The value of X in May is 25
Y is the cost of asphalt
The constant "a" is 125 and constant "b" is 2
The cost of asphalt is set on the first day of each month and is not changed during the month. The cost of asphalt in May was £175 per tonne.
The answer shows that in June X = 26 and in July X = 27. Could someone kindly explain how that was ascertained, as I have got myself a bit muddled. No doubt it is easy and staring straight at me!!
Many thanks
Tracy
I am trying to self teach myself the dreaded PEV, a subject I do not think that I will ever fully grasp.
I am working on the above paper and I have hit a wall on question 1.3.
The question gives an estimate on asphalt for the next 3 months.
The equation is Y = a + bX where
X is the time period in months
The value of X in May is 25
Y is the cost of asphalt
The constant "a" is 125 and constant "b" is 2
The cost of asphalt is set on the first day of each month and is not changed during the month. The cost of asphalt in May was £175 per tonne.
The answer shows that in June X = 26 and in July X = 27. Could someone kindly explain how that was ascertained, as I have got myself a bit muddled. No doubt it is easy and staring straight at me!!
Many thanks
Tracy
0
Comments

X is the time period in months
The value of X in May is 25
so subsequent months are:
June 26
July 270 
Wow, quickest answer ever!!
Thanks Sandy, I assumed the time period had something to do with the 3 months.
Is there anything leaping out in the question for me to know that the increase was 26 then 27 then I assume 28 etc????0
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