For the following questions answer them individually
There would be a 10% loss,if rice is sold at RS.54 per kg. To earn a profit of 20%, the price of rice per kg will be
If a hemisphere is melted and four spheres of equal volume are made, the radius of each sphere will be equal to
60 kg of an alloy A is mixed with 100 kg of alloyB. If alloy A has lead and tin in the ratio 3 ; 2 and alloy B has tin and copperin the ratio 1: 4, the amount of tin in the new alloy is
Base of a right pyramid is a square of side 10cm. If the height of the pyramid is 12cm, then its total surface area is
If a shopkeeper wants to give 20% discount on a toy, he has to sell it for Rs.300. If he sells it at Rs.405, then his gain percentage is
The interior angle of a regular polygon exceedsits extenior angle by $$108^\circ$$, The numberof sides ofthe polygonis
The centroid of a $$ \triangle ABC$$ is G. The area of $$\triangle abc $$ is 50$$ cm^{2}$$, The area of $$ \triangle GBC$$ is
