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A grocer wants to mix a type of spice which costs £22 per kilogram with another type
which costs £12 per kilogram, to obtain 20 kilograms of mixture which will cost £15 per
kilogram. What quantity of each spice must the grocer take?

Respuesta :

haileywee

Answer:

60

Step-by-step explanation:

let a = 22 / kg, and b = 12 / kg

a + b = 20 kg

22a + 12b = 15 * 20

12a + 12b = 240

10a = 60

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