The Petroleum Algorithm
This is for all you math geeks out there.
I car share with two other people and we're trying to work out how much each person should pay for petrol. We all go to work in the same car and I drive.
Heres the scenario: Theres three of us in a car (A, B & C). The total cost of petrol for 5 days is £30.
Assume A travelled for all 5 days, how much should he pay?
B travelled with them for 4 days, how much should he pay?
And C only travelled with them for 2 days, how much should he pay?
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Heres what ive worked out so far.
weeks petrol = £30 (5 days)
divided by the three of us= £10 per person (5 days)
I drove B for four days, therefore £10/5 to figour out how much per day = £2
So £2 multiplied by the number of days x4 = £8
Therefore person B should pay £8.
And person C should pay £4.
BUT 8+4+10 does not equal £30???
Where am i going wrong??
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Please show all working out. And a nice commentry would be good.
Re: The Petroleum Algorithm
Re: The Petroleum Algorithm
[quote=s.b.f]Three people: A, B, C
A- 5 days
B- 4 days
C- 2 days
all adds up to £30
A:B:C
5:4:2
5+4+2=11
30/11 = £2.73 (rounded up to 2d.p)
A - 5 x £2.73 = £13.67
B - 4 x £2.73 = £10.91
C - 2 x £2.73 = £5.45
(all the calculations here have been rounded up to 2 decimal points)
My problem right now is what I should eat for lunch.[/quote]
Aaaww arent you a clever little monster 😃
... but i think you're wrong.
Ive jst had some chips, 2 mince pies, an apple and drinking a bottle of water.
Re: The Petroleum Algorithm
[quote=Seraphim]... but i think you're wrong.
Ive jst had some chips, 2 mince pies, an apple and drinking a bottle of water.[/quote]
Go on. What did I do wrong?
I approve of the chips and water.
Re: The Petroleum Algorithm
[quote=s.b.f][quote=Seraphim]... but i think you're wrong.
Ive jst had some chips, 2 mince pies, an apple and drinking a bottle of water.[/quote]
I approve of the chips and water.[/quote]
But u dont approve of the mince pies?... is it coz they've got sultana's in them 😃
Re: The Petroleum Algorithm
[quote=Seraphim][quote=s.b.f][quote=Seraphim]... but i think you're wrong.
Ive jst had some chips, 2 mince pies, an apple and drinking a bottle of water.[/quote]
I approve of the chips and water.[/quote]
But u dont approve of the mince pies?... is it coz they've got sultana's in them :D[/quote]
I'm more interested in where I went wrong with the Maths! I know it doesn't add up to exactly £30 but that's because I've rounded it up.
Yes. It's because they have yucky sultanas and raisins in. Ewwwwwwwwwww. Do you like sultanas'?
Re: The Petroleum Algorithm
[quote=Ocean]How many days in total?
Plus the guy who's driving, does he charge extra?[/quote]
As per the blog, 5 days. And the total cost is £30, no hidden charges.
Re: The Petroleum Algorithm
[quote=s.b.f]
Yes. It's because they have yucky sultanas and raisins in. Ewwwwwwwwwww. Do you like sultanas'?[/quote]
I've decided raisins don't taste that bad anymore. 😛
and dude its "figured" not figoured :/
Three people: A, B, C
A- 5 days
B- 4 days
C- 2 days
all adds up to £30
A:B:C
5:4:2
5+4+2=11
30/11 = £2.73 (rounded up to 2d.p)
A - 5 x £2.73 = £13.67
B - 4 x £2.73 = £10.91
C - 2 x £2.73 = £5.45
(all the calculations here have been rounded up to 2 decimal points)
My problem right now is what I should eat for lunch.