An open tank is to be constructed with square base and vertical sides so as to contain a given quantity of water. Show that the expenses of lining with lead will be least, if depth is made half of width.

An open tank is to be constructed with a square base and vertical sides to hold a given capacity of water . The expense of lining the tank with lead is least when the ratio of the depth and the width is

An open tank with a square base and vertical sides is to be constructed form a metal sheet so as to hold a given quantity of water. Show that the cost of material will be least when depth of tank is half its width. If the cost is to be borne by nearby settled lower income families, for whom water will be provided, what kind of value is hidden in the question

An open tank with a square base and vertical sides is to be constructed form a metal sheet so as to hold a given quantity of water. Show that the cost of material will be least when depth of tank is half its width. If the cost is to be borne by nearby settled lower income families, for whom water will be provided, what kind of value is hidden in the question

An open tank with a square base and vertical sides is to be constructed from a metal sheet so as to hold a given quantity of water. Show that the cost of the material will be least when the depth of the tank is half of its width.

An open tank with a square base and vertical sides is to be constructed from a metal sheet so as to hold a given quantity of water.Show that the cost of the material will be least when depth of the tank is half of its width.

An open tank of volume 32 cu. Metre consists of a square base with vertical sides. Find the dimensions of the tank when the expense of lining it with lead is minimum.

An open box with a square base is to be made out of a given quantity of sheet of area a^2 . Show that the maximum volume is (a^3)/(6sqrt3) .

An open tank of a given capacity has square base with vertical sides . Prove that the expense of lining the the tank with cement will be minimum if the height of the tank is half the width.

An open tank of square base is to be constructed which has a given quantity of water. Prove that for least material used for the construction of tank, the depth will be half of the width of tank.