Question

SOLVE THE NUMERICAL Find the density of unknown material having mass 15 kg its shape of box length is 20cm breadth 25 cm and height 20cm..

Answer 1

Answer:

Mass= 15kg

Length = 20cm=0.2m

Breadth=25cm=0.25m

Height =20cm=0.2m

Volume = L× B × H = 0.2 × 0.25 × 0.2 = 0.01 m^3

Density = mass/volume

=15/0.01

=1500kg/m^3

Answer 2

Answer:

Explanation:

Density =Mass/Volume

Here the mass is given =15kg

As the shape of the box has length ,breadth and height ..it is a cuboid

So to find the volume of a cuboid we use the following relation

CUBOID =LENGTH×BREADTH×HEIGHT

Length =20cm

Breadth=25cm

Height =20cm

Volume=20×25×20

=10,000 cubic centimetre

Therefore we have the mass and volume so we can calculate density

Density=Mass/Volume

Density=15/10,000

=0.0015 kg/cm3..1500kg/m3

Hope it helps you..

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