# Engineer Kažimír

The difference between politicians-demagogues and reasonable person with at least primary education beautifully illustrated by the TV show example.

"Engineer" Kažimír says that during their tenure there was a large decline in the price of natural gas, price went from 0.46 €/m

Mr. engineer Kažimír does not have a bit of common sense when comparing gas prices in €/kWh to the price quoted €/m

Prove fact that 1 cubic meter is 46 cents a kilowatthour and costs 4.25 cents, so it is the same price.

"Engineer" Kažimír says that during their tenure there was a large decline in the price of natural gas, price went from 0.46 €/m

^{3}to € 0.0425/kWh. Calculate:- how many percent the price of gas has fallen theoretically, if we do not consider the unit in which the price shown.
- Transform unit 1 kWh of energy to MJ
- If you are considering a calorific value of natural gas was 3.91×10
^{7}J/m^{3}, calculate how much MJ is released by burning one cubic meter of gas - What is the conversion factor combustion heat of natural gas to kWh?
- Calculate how many percent dropped the price of gas when to consider the calorific value gas.

Mr. engineer Kažimír does not have a bit of common sense when comparing gas prices in €/kWh to the price quoted €/m

^{3}.Prove fact that 1 cubic meter is 46 cents a kilowatthour and costs 4.25 cents, so it is the same price.

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#### To solve this example are needed these knowledge from mathematics:

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