The cost of 2kg of apples and 1kg of grapes on a day was found to be Rs 160. After a month the cost of 4kg of apples and 2kg of grapes is Rs300. Represent the situation algebrically and geometrically.

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

The cost of 2 kg of apples and 1 kg of grapes on a day was 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.

The cost of 4kg onion, 3 kg wheat and 2kg rise in Rs. 60. The cost of 2kg onion, 4 kg wheat and 6 kg rice in Rs.90. The cost of 6kg onion, 2kg wheat and 3 kg rice is Rs.70. Find cost of each item per kg by matrix method.

4 chairs and 3 tables cost Rs. 2100 and 5 chairs and 2 tables cost Rs. 1750. Find the cost of one chair and one table separately.

The velocity of a 2 kg body is changed from (4hati +3hatj) ms^(-1) to 6hat ms^(-1) . The work done on the body is

Suppose 2Kg of sugar contains 9xx10^6 crystals.How many sugar crystals one there in (i)5kg of sugar? (ii)1.2 kg of sugar?

Two bodies of masses 1 kg and 2 kg have equal momentum. Then, the ratio of their kinetic energies is

Shyama bought 5 Kg 300g apples and 3kg 250g mangoes. Sarala bought 4Kg 800g Oranges and 4Kg 150g bananas. Who bought more fruits?

A trolley of mass 300 kg carrying sandbag of 25 kg is moving uniformly with a speed of 27 km/h on a frictionless track. After a while, sand starts leaking out of a hole on the floor of the trolley at the rate of 0.05kg s^(-1) . What is the speed of the trolley after the entire sand bag is empty?