Refer to the data below and answer the ques ons that follow.

In a village in Mesopotamian civiliza on, only three items i.e., grains, cooking oil and po ery are traded and bronze coins are used as money. There is only one trader in the village who transacts these three items with the common people (i.e., buys from the common people and sells to the common people) by exchanging bronze coins. The base exchange rate of an item is the weight of the bronze coins (in kg), which are equivalent in value to one kg of the item being traded. The trader buys items at buying exchange rates that are lower than the base exchange rates, and sells the items at selling exchange rates that are higher than the base exchange rates.

The base exchange rates (in terms of kg of bronze coins) for per kg of grains, cooking oil and po ery are in the ra o 12: 50: 45. The trader would offer 10% less weight of bronze coins than the base exchange rate for buying any of the three items from the common people. Further, the trader would charge 20% more weight of bronze coins than the base exchange rate for selling any of the three items to the common people. The trader had enough bronze coins and the three types of items for the exchange on any day.

The following points are known about the exchange of items on a par cular day.

1. 1. At the me of opening of the market in the morning, the trader had 90,000 kg grains, 50,000 kg cooking oil and 6,000 kg pottery.
2. 2. At the me of closing of the market in the evening, the trader had 75,000 kg grains, 55,000 kg cooking oil and 6,000 kg pottery.
3. 3. The weight of the bronze coins paid by the trader to buy cooking oil was same as the weight of the bronze coins received by the trader by selling cooking oil on that day.
4. 4. The weight of the bronze coins paid by the trader to buy grains and that paid by him to buy po ery was in the ra o 7: 6.
5. 5. The weight of the bronze coins received by the trader by selling grains and that by selling po ery was in the ra o 2: 1.
6. 6. The weight of the bronze coins received by the trader by selling grains was 43,200 Kg.