Monthly sales of a particular personal computer 'are expected to decline at the following rate of S'(t) computers per month. where t is time in months and S(t) is the number of computers sold each month; 3 S"(t) : ; 25t3 , The company plans to stop manufacturing this computer when monthly sales reach 1.000 computers. If monthly sales now (I : 0) are 1,900 computers, nd S(t). How long will the company continue to manufacture this computer? \\ 5