Dried fruit

The manufacturer produces a mixture of dried fruit. He purchased:

10kg pineapple for 200 Kc/kg
2kg papaya for 180 kc/kg
1kg of banana for 400 Kc/kg

How many kgs of raisin for 80 Kc/kg must be put into the mix by the manufacturer so that the production price of the mixture is 120 Kc/kg.

Result

m =  30 kg

Solution:


120 = (10*200+2*180+1*400+m*80)/(10+2+1+m)

(10+2+1+m) * ( 120 ) = (10+2+1+m) * ( (10*200+2*180+1*400+m*80)/(10+2+1+m) )

40m = 1200

m = 30

Calculated by our simple equation calculator.








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