A fertilizer plant produces three types of fertilizers. Type A (produced with potassium, nitrate and phosphate), contains 46% potassium & 39% nitrate. Type B (also made with potassium, nitrate and phosphate), contains 30% potassium, and 33% nitrate. Type C (which does not contain potassium), has 50% nitrate. The plant supplies 1,272 tons per day of potassium, 1,659 tons per day of nitrate & 1,776 tons per day of phosphate. How much of the fertilizer do we have to produce so that we run out of ingredient supplies? its normal negative results