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Arabica Robusta
x 1 – x
costshs. 4700 shs. 4200
4700x + 4200 – 4200x = 4600
47x – 42x = 46 – 42
5x = 4
x = 4/5
Arabica : Robusta = 4 : 1
Kavungya answered the question on September 24, 2019 at 08:46
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