Need some math help

[ChezCheese:)]

I want to figure out a factor to multiply a "per 100gms" price that will give me the price per pound. So, like, say I'm looking at a cheese which is €XX per 100gms. What do I multiply XX by to get the price per pound?

Obviously, the price per kilo would be €XX0. (XX times 10).

And a kilo is 2.2 lbs. (Double a pound +10%. Hmmn...) XX0÷2.2= lb rate. 100gms =.22 pound. (I always remember from being in the tea business that 100gms is about a quarter lb package of tea.)

So a close estimate would be multiplying the 100gm price by 4 or 5, wouldn't it?

And 1 euro is currently about 92¢ US, or conversely, US $1 = €1.08.

Say the price for 100gms of cheese is €7. The price per kilo would be €70. Divide that by 2.2 gets you €31.81 per lb, which would be $34.80/lb.

$34.80 ÷ 7 = 4.97. So if I take any 100gm euro price and multiply it by 5, I will have the per lb price in dollars!

Let's see. 100gms of tea for €6.75. If I use my x5 factor, that would be a per lb price of $33.75.

Whaddya think? Is x5 the correct(ish) factor?

 

[Jeremy McCreary]

So a close estimate would be multiplying the 100gm price by 4 or 5, wouldn't it?

Yes, 10/2.2 = 4.545 to be exact.

 

[Stefan Mikes]

Multiply by 4.54. No math needed really. There are 454 grams in a pound so the conversion factor is 454 / 100 = 4.54.

To make it simpler, I would multiply the "100 g price" by 9 and then divide by two

 

[PedalUma]

I thought you were looking for the best value in a bike with the lowest cost per kg = the best value.

 

[ChezCheese:)]

Multiply by 4.54?? Not something one can do in one's head - - at least not my head . Your mileage may vary .

 

[Stefan Mikes]

Multiply by 4.54?? Not something one can do in one's head - - at least not my head . Your mileage may vary .

Multiply by five as you have correctly found yourself Not only taking the currency exchange rate into account but also giving you the conservative estimate! Things are expensive in Europe!

 

[ChezCheese:)]

That was the other question - - is the price erring on the slightly over the real cost or slightly under? So you say it makes the price seem a tad higher than it is?

 

[Stefan Mikes]

slightly over the real cost

This

 

[Jeremy McCreary]

That was the other question - - is the price erring on the slightly over the real cost or slightly under? So you say it makes the price seem a tad higher than it is?

If you multiply by 5 instead of 4.545, you're effectively padding the price by about 10%.

Starting to get the feeling that you're in the cheese biz. If so, great business model, what with cheeze being one of the most addictive substances ever invented.

 

[PedalUma]

 

[Jeremy McCreary]

View attachment 156091

Exactly.

 

[Stefan Mikes]

@ChezCheese:) I had another dilemma this evening. On the race I'm starting in tomorrow, there is a flying start 2 km away from the starting line. The contenders are not allowed to ride for the first two kilometres faster than in 7 minutes, or they will be penalized. What is the maximum allowed average speed?

Took me awhile to figure out that it would be around 17 km/h. Or, going your way, some 10 mph to be on the safe side

 

[ChezCheese:)]

Now I look at that, and I think, so you can go 1 kilometer in 3.5 minutes. 1 hour (60min) ÷ 3.5 = 17.14 kms per hr. So yes, 10mph. Sorta.

 

[ChezCheese:)]

If you multiply by 5 instead of 4.545, you're effectively padding the price by about 10%.

Starting to get the feeling that you're in the cheese biz. If so, great business model, what with cheeze being one of the most addictive substances ever invented.

No, I'm not in the cheese business... Well, I'm in the cheese biz only at the eating end of the equation.

ChezCheese came about when we got a Chevy van to turn into camping van. I wanted it painted schoolbus/construction yellow, for visibility/safety, hence Chez Cheese. Unfortunately my drab husband wasn't having any of that, so then it was to be carpenter's chalk line blue, which is surprisingly visible against greenery. However the danged auto paint guy painted it dark metallic blue. I think they were in cahoots. But we had waited a long time for the thing to get painted, so it is now called the Blue Yonder, but I remain ChezCheese.

 

[Roamers]

@ChezCheese:) I had another dilemma this evening. On the race I'm starting in tomorrow, there is a flying start 2 km away from the starting line. The contenders are not allowed to ride for the first two kilometres faster than in 7 minutes, or they will be penalized. What is the maximum allowed average speed?

Took me awhile to figure out that it would be around 17 km/h. Or, going your way, some 10 mph to be on the safe side

That's an easy one. We used to race sailboats on the Mississipi River. I forgot the exact sequence, but at X minutes all auxiliary motors and paddles had to be stowed; at x-y minutes you were z minutes from the start. At z minutes the gun goes off and you can cross the start line.

The wind is variable; the river is a fairly consistent speed towards the starting line (picture a moving conveyor belt).

With a fairly stiff consistent breeze, easy to plan; not so much on every race we ever did starting at 8am before the wind picks up.