The average of the items that a company makes per month is 4000 for the first 3 months, how many items it makes per month in the next 9 months so that the average per month of the goods in the whole year is 4375.
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Step-by-step explanation:
Total items of first 3 months = 4000×3 = 12000
Total items of 12 months = 4375×12 = 52500
Average of last 9 months = 52500−120009=405009=450
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