Question

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A trader gets a profit of 20% by selling coffee by mixing two varieties costing 7 400 and 480 a kg. In what ratio should
he mix them?​
1)1:3
2)8:9
3)2:5
4)9:10​

Answer 1

Answer:

$\sqrt{x { { \sqrt[21.e \sec( \beta ) ]{?} \times \frac{?}{?} }^{2} }^{?} }$