Question

a containter whose shape cube contains 500m3of water when it is half full.what is height of a containter

Answer 1

Volume of water when it is full = 15.625m^3

hence it is a cube then it means all the side such as length breadth and height should be same,

now

volume of cube = (a)^3

15.625m^3 = (a)^3

a = 2.5m

now it's height get changed from the previous one (i.e 2.5m get changed to 1.3m) it means it becomes a cuboid having length = 2.5m, breadth= 2.5m and height= 1.3m

as we know that,

volume of cuboid tank =Length×Breadth×height

volume of cuboidal tank (i.e remaining water in tank) = 2.5m×2.5m×1.3m

volume of water remaining tank = 8.125m^3

Now, volume of water already used From the tank = total volume of water - volume of water left in tank.

volume of water already used From the tank = 15.625m^3 - 8.125m^3

ANSWER:

volume of water already used From the tank = 7.5m^3

i hope this will help you

Answer 2

Volume of cubical container= 2(500)

= 1000m3

Volume of cube = a3

1000m3= a3

Cube root of 1000 = a

10m = edge of the cube