720g of cromium is needed to make 6kg of stainless steel. Find how much cromium will be needed to make 11 kg of stailess steel.

I shall buy toffees for 6 of us. Find how much money will be needed.

There are 3 litres of syrup in 10 litres of a soft drink (sherbat). Find, how much syrup will be required to make 5 litres of soft drink.

If Rs.1771 is needed for making 7 ploughs, how much will be needed for making 12 ploughs?

If 15m of cloth is required to make 5 frocks, how many metres of cloth will be needed for 2 frocks, to find.

A vessel made of copper weighs 1 kg and it contains 1 kg of water at 10^(@)C . How much coal will be required to raise the temperature of this water to 100^(@)C ? On burning 1 kg of coal, 10^(4) cal of heat can be produced and 40% of this heat is lost. Specific heat of copper ="0.09 cal.g"^(-1).^(@)C^(-1) .

One kind of cake requires 200g of flour and 25 g of fat, and another kind of cake requires 100 g of flour and 50 g of fat. Find the maximum number of cakes which can be made from 5 kg of flour and 1 kg of fat assuming that there is no shortage of theother ingredients used in making the cakes.

The shape of a heap of wheat is a right circular cone, the diameter of base of which is 9 metres and height is 3.5 metres. Find the volume of the heap of wheat. How much sq-metre of plastic sheet will be needed to cover that heap of wheat ? [Given that pi=3.14 and sqrt(130)=11.4 ].

A satellite of mass 250 kg is orbiting the earth at a height of 500 km above the surface of the earth. How much energy must be expended to rocket the satellite out of the gravitational influence of the earth? Mass of earth = 6 xx 10^24 kg Radius of earth = 6400km.

How many would be reqruied to make 1 kg? m_(p)=1.67xx10^(-7)kg