For the following questions answer them individually
Eachinterior angle of a regular polygonis three times its exterior angle, then the numberof sides of the regular polygon is :
Selling an article at a ‘profit of 5%, Mr.X gets ₹150 morethan selling it at a loss of 5%. Mr.X purchased the article at
The average weightof5 persons sitting in a boat is 38 kg. The average weightofthe boat and the persons sitting in the boat is 52 kg. Whatis the weightof the boat ?
Inacylindrical vessel of diameter 24 cmfilled up with sufficient quantity of water, a solid spherical ball of radius 6 cmis completely immersed. Then the increase in height of waterlevelis :