Question

The length, breadth and height of a metal block of mass 160 kg are 50 cm, 40 cm and 20 cm respectively. Calculate the density of the metal block.​

Answer 1

Answer:

0.004

Explanation:

d=m/v

d=160kg/ 50 * 40* 20

d=0.004

Answer 2

Given : The length, breadth and height of a metal block of mass 160 kg are 50 cm, 40 cm and 20 cm respectively.

To Find  :   the density of the metal block.​

Solution:

Density = mass / Volume

Mass = 160 kg  = 160 x 1000 g  

Volume  = 50 x 40 x 20  =  40 x 1000  cm³

Density = 160 x 1000 / (40 x 1000)   = 4 g/cm³

or

Mass = 160 kg

Volume   = (50/100) x (40/100) x (20/100)  = 4/100  m³

Density =  160 / (4/100)   = 4000  kg/m³

density of the metal block.​  is  4 g/cm³  

or 4000  kg/m³

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