1. The problem states that a store offers trade discounts of 15/10 on a list price of 2000. 2. Trade discounts are successive discounts applied one after the other, not added together. 3. First, calculate the price after the first discount of 15%: $$2000 \times (1 - 0.15) = 2000 \times 0.85 = 1700$$ 4. Next, apply the second discount of 10% on the new price: $$1700 \times (1 - 0.10) = 1700 \times 0.90 = 1530$$ 5. Therefore, the net price after both trade discounts is 1530. 6. The correct answer is option a. 1530.