Two teas

A mixture weighing 10 kg was made from two types of tea. The price of tea was 160 CZK/kg and second tea 170 CZK/kg. The price of the mixture is 166 CZK/kg. How many kilograms of each type of tea had to be mixed?

Correct result:

a =  4 kg
b =  6 kg

Solution:

m=10   a+b=m 160a+170b=m 166 a+b=10 160a+170b=10 166  a+b=10 160 a+170 b=10 166  a+b=10 160a+170b=1660  a=4=4 kg b=6



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