Question

A cube - shaped water tank 1 m long is full of water. How much water remains in it , if 514 L of water is drained out ?​

Answer 1

A cubical tank with edge 2m is filled with water. How many buckets of capacity 10 litre can be filled from the tank? (1m

3

=1000l).

Answer

Open

Correct option is

A

800

We know, volume of a cube v=a

3

, where a is the edge of the cube.

Given, Edge of the tank a=2m.

Then, volume of the tank =2

3

=8m

3

.

Since, 1m

3

=1000l,

volume of the tank =8×1000l=8000l.

Also, the capacity/volume of the bucket =10l.

Then,

Number of buckets that can be filled=

Volume of bucket

Volume of tank

=

10

8000

=800 buckets.