Mixture of coffee

They have to prepare a mixture of coffee in packing centres so that 1 kg costs 240 CZK. There are two types of coffee in stock at the price of 220 CZK per 1 kg and 300 CZK per 1 kg. How many kilograms of each species need to be mixed to prepare 50 kg of the required mixture?

Correct answer:

a =  37.5 kg
b =  12.5 kg

Step-by-step explanation:




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