A company produces on an average 4000 items per month for the first 3 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?
(a) 4500 (b) 4600 (c) 4680 (d) 4710
A company produces on an average 4000 items per month for the first 3 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?
(a) 4500 (b) 4600 (c) 4680 (d) 4710