The cost of 2 kg of apples and 1kg of grapes on a day ws found to be Rs 160. After a month, the cost of 4 kg of apples and 2 kg of grapes is Rs 300. Represent the situation algebraically and geometrically.

4 chairs and 3 tables cost ? 2100 and 5 chairs and 2 tables cost ? 1750. Represent this situation algebraically and graphically.

RamiIa went to a stationery' shop and purchased 2 pencils and 3 erasers for Rs 9. Her friend Sonali saw the new variety of pencils and erasers with Romila, and she also bought 4 pencils and 6 erasers of the same kind tor Rs 18. Represent this situation algebraical iy and graphically.

Find the cost of sugar and wheat per kg., if the cost of 7kg. Of sugar and 3 kg, of wheat is Rs. 210. cost of 7kg. wheat and 3 kg, of sugar is Rs. 160. (Use determinants).

Form the pair of linear equations in the following problems and find their solution by substitution method : Four kg of apples and 3 kg of guava together cost ? 36.50 while 3 kg of apples and 2 kg of guava cost ? 26.50. What is the price per kg of apples and guava ?

The cost of 4 kg onion, 3 kg wheat and 2 kg rice is Rs 60. That: 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 the cost of each item per kg. by using matrix method.

Cost of 5kg of wheat is Rs.30.50. What will be the cost of 8 kg of wheat?

Rahul bought 4 kg 90 g of Apples , 2 kg 60 g of grapes and 5 kg 300 g of mangoes . Find the total weight of all fruit he bought

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.