The beaker had 14 ml of water before dropping the marbles. By how many millilitres will the water drop if two marbles are removed from the beaker?

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Solution

The correct option is D 8
Volume of water initially in the beaker = 14 ml.

The water is filled till 30 ml mark after the marbles are dorpped.
So, volume of 4 marbles = 30 - 14 = 16 ml
Volume of one marble = 16 $\div$ 4 = 4 ml
Volume of two marbles = 8 ml.

So the water in the beaker would drop by 8 ml if two marbles are removed from it.

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