Usahatani Company, a monopolist, has the following cost and revenue information in selling their fertilizer).

Refer to Table 2. What is the marginal cost of the 6th fertilizer?

JADUAL 2 (TABLE 2) COSTS REVENUES Quantity Total Marginal Quantity Price Total Marginal Produced Cost Cost Demanded (RM/unit) Revenue Revenue (RM) O 100 0 170 140 160 2 184 150 W N 230 140 4 280 4 130 5 335 120 6 395 110 7 475 100 8 565 90