Bananas and mango

5 kg of bananas and three kilograms of mango cost 146 CZK, two kilograms of bananas and 5 kilograms of mango cost 142 CZK. How much is a kilogram of bananas, and how many mangoes?

Correct result:

b =  16
m =  22

Solution:

5b+3m=146
2b+5m=142

5•b+3•m=146
2•b+5•m=142

5b+3m = 146
2b+5m = 142

b = 16
m = 22

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