Question

A storage tank is in the form of a cube. When it is full of water, the volume of water is 15.625 m3 .If the present depth of water is 1.3 m, find the volume of water already used from the tank. 3. Find the amount of water displaced by a solid spherical ball of diameter 4.2 cm, when it is completely immersed in water. 4. How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m?

Answer 1

$\huge\mathfrak\green{Answer:-}$

Volume of cubical tank = 15.625 m³

side³ =15.625

⇒side = 2.5 m

present depth = 1.3 m

so empty depth = 2.5 - 1.3 = 1.2 m

volume of water used = 2.5×2.5×1.2 = 7.5 m³