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 800. How many workers were part of the latter production run?	Choose the correct choice
A) A)6 B) B)10 C) C)11 D) D)21 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 1250 .. thus for the current period = 800 -500= 
<gadget id="calculator">800 -500</gadget>
<output>300</output>
300   (5n+45)K= 300   k = 300/5n+45........................................2   equate 1 and 2   500/5n+20 = 300 /5n+45   500(5n+45) = 300(5n+20)   2500n + 22500 = 1500n + 6000   1000n = -16500   n = 16   thus n+5 = 21   hence 21
<result>D</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 800. How many workers were part of the latter production run?