An object has a density of $20$ g/mL and a volume of $12$ mL. Find the mass of the object :

200 g

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0.77 g

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2.4 g

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240 g

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100 g

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Solution

The correct option is C $240 g$
Density of a substance is its mass per unit volume.

$D e n s i t y = \frac{m a s s}{v o l u m e} \Rightarrow 20 g / m L = \frac{m a s s}{12 m L}$

$M a s s = 240 g$

Hence option D is correct.

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