To make rice, we need two ingredients. One part is the raw rice and the other part is:
Onion
Water
Chilly powder
Wheat
Rice is cooked when it is boiled with water. So the other ingredient is water.
The cost of 4 kg onion, 3 kg wheat and 2 kg rice is Rs 60. The cost of 2 kg onion, 4 kg
wheat and 6 kg rice is Rs 90. The cost of 6 kg onion 2 kg wheat and 3 kg rice is Rs 70.
Find cost of each item per kg by matrix method.