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Comparison of Volumes of Solids

A measuring g...

Question

A measuring glass is made using water and marbles. Here '1' indicates '5' marbles and 2 indicates '10' marbles and so on...

When a pencil is dropped in it, water level raises to 5M. Again a metal piece is dropped in it, the water level rasies to 25M. So the volume of metal piece is

A

15 marbles

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B

20 marbles

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C

25 marbles

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D

30 marbles

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Solution

The correct option is B 20 marbles
The volume of pencil = 5M
The volume of pencil and metal piece = 25M

The volume of metal piece
= (The volume of pencil and metal piece)-(volume of pencil)
= 25M - 5M
= 20M

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