50:35 It is the policy of stores owned by the Taikara Co. to give out bonuses to salespeople every six months The size of the
bonus is determined by averaging (taking the mean of) the two highest and the lowest monthly sales totals from the
six-month period, taking 8% of the result, and splitting it evenly among the salespeople. The graph below shows sales
for the most recent bonus period.
Total Sales
29
27.7
27
25.6
25.3
25
23.6
23
Sales (5 * 1,000)
21
19.7
19
17
15
Jul
Aug
Sep
Oct
Nov
Dec