Question

The substance having a density of 0.8g/cm3
has a mass of 64 gram. What is it volume
​

Answer 1

Volume= Mass / Density

Volume =64/0.8

Volume=80

Answer 2

$\large\underline{\red{\sf \blue{\bigstar} .}}$Given :-

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• The substance having a density of 0.8g/cm3 has a mass of 64 gram .

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$\large\underline{\green{\sf \orange{\bigstar} .}}$To find :-

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• Volume substance

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$\large\underline{\blue{\sf \red{\bigstar} .}}$ Solution :-

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• Density of substance = 0.8 g/cm³

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• Mass of substance = 64 g

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$\large\underline{\red{\sf \orange{\bigstar} .}}$ As we know that

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• → D = m/V

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• Where " D " is density, " m " is mass and " V " is volume of substance.

$\green{\sf{\star\;According\; to\; question}}$

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• → Density = Mass/Volume

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• → 0.8 = 64/V

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• → 8/10 = 64/V

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$\large\underline{\purple{\sf \blue{\bigstar} .}}$Cross multiplication

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• → 8 × V = 10 × 64

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• → 8V = 640

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• → V = 640/8

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$\large\underline{\pink{\sf \green{\bigstar} .}}$→ V = 80 cm³

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$\large\underline{\red{\sf \orange{\bigstar} .}}$Hence,

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

$\red{\sf{\star\;Volume \;of\; substance \;is\; 80cm³}}$

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$\large\underline{\orange{\sf \purple{\bigstar} .}}$More to unit $\large\underline{\green{\sf \pink{\bigstar} .}}$

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• C.G.S unit of density is g/cm³

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• S.I unit of density is kg/m³

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