A shop produces sarongs. The daily average production is given by 5n + 20, where n is the number of workers aside from the owner. In the first k days, 500 units are produced, and then 5 workers are added to the team. After another k days, the cumulative total is 1300. How many workers were part of the latter production run? Choose the correct choice from the following answers:	A) A)6	B) B)10	C) C)9	D) D)15	E) E)23.5
The daily average production is given by 5n + 20- given   In the first k days, 500 units are produced   = (5n+20)K =500   k = 500/5n+20...................................1   5 workers were added = 5(n+5)+20 = 5n +45   cumulative is 1300 .. thus for the current period = 1300 -500= 
<gadget id="calculator">1300 -500</gadget>
<output>800</output>
800   (5n+45)K= 800   k = 800/5n+45........................................2   equate 1 and 2   500/5n+20 = 800 /5n+45   500(5n+45) = 800(5n+20)   25n + 225 = 40n + 160   -15n = -65   n = 4   thus n+5 = 9   hence 9
<result>C</result>
A shop produces sarongs. The daily average production is given by 5n + 20, where n is the number of workers aside from the owner. In the first k days, 500 units are produced, and then 5 workers are added to the team. After another k days, the cumulative total is 1300. How many workers were part of the latter production run?