There are two types of candies in the store at 20 CZK/kg and 80 CZK/kg. How much will be cost a mix if we mix 22kg cheaper and 4kg more expensive candies?

Correct answer:

a =  760 Kc
x =  29.23 Kc/kg

Step-by-step explanation:

a=(22 20+4 80)=760 Kc
x=a/(22+4)=760/(22+4)=29.23 Kc/kg

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