This objective test question contains a question type which will only appear in a computer-based exam, but this question provides valuable practice for all students whichever version of the exam they are taking. Mr. Green makes salads. The standard plate of salad has 30 g of lettuce (L), 50 g of peppers (P) and 80 g of beetroot (B). The standard prices of the three ingredients are $0.2/kg, 0.4/kg and 0.8/kg respectively. The actual prices were $0.22/kg, $0.38/kg and $0.82/kg. Mr. Green has been experimenting and so in July he changed the mix of vegetables on the plate thus: 1,500 plates contained 62,000 grams of lettuce, 81,000 grams of peppers and 102,000 grams of beetroot. What is the cost difference between the actual mix and the standard mix to the nearest cent?
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