A company produces on an average 4000 items per month for the first th

1.	A company produces on an average 4000 items per month for the first three months. How many items it must produce on an average per month over the next 9 months to average 4375 items per month over the whole year ? (a) 4500 (b) 4600 (c) 4680 (d) 4710
Answer» Answer is: (a) 4500 Total number of items produced for first three months = 4000 × 3 = 12000 Total number of items required to be produced over a period of 12 months = 4375 ×12 = 52500 ⇒ Number of items to be produced over a period of 9 months = 52500 – 12000 = 40500 ∴ Average number of articles per month produced over 9 months = \(\frac{40500}{9}\) = 4500

A company produces on an average 4000 items per month for the first three months. How many items it must produce on an average per month over the next 9 months to average 4375 items per month over the whole year ? (a) 4500 (b) 4600 (c) 4680 (d) 4710

Answer»

Answer is: (a) 4500

Total number of items produced for first three months = 4000 × 3 = 12000

Total number of items required to be produced over a period of 12 months = 4375 ×12 = 52500

⇒ Number of items to be produced over a period of 9 months = 52500 – 12000 = 40500

∴ Average number of articles per month produced over 9 months = \(\frac{40500}{9}\) = 4500

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A company produces on an average 4000 items per month for the first three months. How many items it must produce on an average per month over the next 9 months to average 4375 items per month over the whole year ? (a) 4500 (b) 4600 (c) 4680 (d) 4710

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