Question

3140 gram of liquid is filled in cylinder if the radius of the cylinder 20 cm and the level of the liquid rises up to 25 cm calculate the density of the given liquid in the cylinder in kg/mcube(use pie 3.14)

Answer 1

Given:-

• Mass of liquid = 3140 g
• Radius of cylinder = 20cm
• Height = 25cm

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Need to Find:-

• The density of the cylinder =?

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Solution:-

We know,

Volume of cylinder = $\pi {r}^{2}h$

Substituting the values we get,

→ Volume = $\pi {20}^{2} \times 25 \: {cm}^{3}$

→ Volume = $3.14 \times 20 \times 20 \times 25 {cm}^{3}$

→ Volume = $3.14 \times 400 \times 25 {cm}^{3}$

→ Volume = $31,400 {cm}^{3}$

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We know,

Density = Mass ÷ Volume

→ Density = 3140 g ÷ 31400 $cm^{3}$

→ Density = 0.1 g/$cm^{3}$

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