Oranges 5927

When you buy 3 kg of apples and 2 kg of oranges, we will pay € 12. When you buy 2 kg of apples and 4 kg of oranges, we pay € 16. How much does 1 kg of apples cost?

Correct answer:

j =  2
p =  3

Step-by-step explanation:


3j+2p = 12
2j+4p = 16

3·j+2·p = 12
2·j+4·p = 16

3j+2p = 12
2j+4p = 16

Row 2 - 2/3 · Row 1 → Row 2
3j+2p = 12
2.67p = 8


p = 8/2.66666667 = 3
j = 12-2p/3 = 12-2 · 3/3 = 2

j = 2
p = 3

Our linear equations calculator calculates it.



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