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Arwen uses a dropper that produces drops that have a volume of 1/8 mL to fill a 30-mL test tube. How many drops does it take to fill the test tube?

1 Answer

sankarankalyanam

Jun 21, 2018

$240 drops it requires to fill the test tube$ $color(maroon)("240 drops it requires to fill the test tube"$

Explanation:

$Total volume to be filled = 30 m l$ $"Total volume to be filled " = 30 ml$

$Volume of one drop = (\frac{1}{8}) m l$ $"Volume of one drop " = (1/8) ml$

$No. of drops required to fill the test tube = \frac{30}{\frac{1}{8}}$ $"No. of drops required to fill the test tube " = 30 / (1/8)$

$\Rightarrow \frac{30 \cdot 8}{1} = 240 d r o p s$ $=> (30 * 8 ) / 1 = 240 " " drops$

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