Four ingredients costing $320 per kg, $240 per kg, $160 per kg and $80 per kg are mixed so that their masses are in the ratio 4:1:3:2. The average cost per kg of the mixture, would be $2160.
What is average?
The average is defined as the mean value of the given data which is equal to the ratio of the sum of the data value to the total number of units present in the data.
It is given that
Four ingredients costing $320 per kg, $240 per kg, $160 per kg and $80 per kg are mixed so that their masses are in the ratio 4:1:3:2.
(320 x 4) = 1280
(240 x 1) = 240
(160 x 3) = 480
(80 x 2) = 160
The averege cost per kg of the mixture,
1280 + 240 + 480 + 160
= 2160
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