Question

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

Answer 1

Given :-

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

To find :-

• Volume substance

Solution :-

• Density of substance = 0.8 g/cm³

• Mass of substance = 64 g

As we know that

→ D = m/V

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

• According to question

→ Density = Mass/Volume

→ 0.8 = 64/V

→ 8/10 = 64/V

• Cross multiplication

→ 8 × V = 10 × 64

→ 8V = 640

→ V = 640/8

→ V = 80 cm³

Hence,

• Volume of substance is 80cm³

More to unit :-

• C.G.S unit of density is g/cm³

• S.I unit of density is kg/m³

Answer 2

ɢɪᴠᴇɴ :-

• The density of a substance = $\tt 0.8g/cm^3$
• Mass of the substance = 64 grams

ᴛᴏ ꜰɪɴᴅ :-

• Volume of the substance

ꜱᴏʟᴜᴛɪᴏɴ :-

$\large {\underline{\boxed {\red{ \tt{density = \frac{mass}{volume} }}}}}$

$\tt{density = \frac{mass}{volume}}$

$\tt{0.8 = \frac{64}{V}}$

$\tt{\frac{8}{10}= \frac{64}{V}}$

$\tt 8 × V = 10 × 64$

$\tt 8V = 640$

$\tt V = 640/8$

$\tt V = 80 cm^3$

Hence, The volume of substance is $\green{ \underline{ \boxed{ \sf{80 \;cm^3}}}}$

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