Question

find the weight of a metallic cube of side 70 cm, if 1 cm3 weighs 100 g.

Answer 1

Weight of Metallic cube is 34300 kg.

Step-by-step explanation:

Given:

side of cube = 70 cm

Weight of $1\ cm^3 = 100 g$

We need to weight of the metallic cube.

Since weight given is of  1 cubic centimeter.

Hence we will find the Volume of the cube first.

Volume of cube is given cube of its side.

framing in equation form we get;

Volume of cube = $70^3 = 343000 \ cm^3$

Now Given:

$1\ cm^3 = 100 g$

$343000 \ cm^3$ = Weight of Metallic cube

By Using Unitary method we get;

Weight of Metallic cube = $343000\times100 = 34300000g$

Now we know that

1000 g = 1 kg

34300000 g = 34300 kg

Hence Weight of Metallic cube is 34300 kg.

Answer 2

Answer:

Valume of cube=A^3

(A)^3= (70)^3 =343000

1cm^of weight=100 g

343000×100 =34300000 gram

34300000 ÷100

=343000 kg

Please follow me,