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How many cylinders of radius 10 cm and height 20 cm can be filled with water from a cylinder of radius 20 cm and height 100 cm full of water? 

This question was previously asked in
RRB Group D 25 Aug 2022 Shift 2 Official Paper
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  1. 30
  2. 60
  3. 20
  4. 40

Answer (Detailed Solution Below)

Option 3 : 20
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Given:

Cylinder of radius 10cm and height 20cm.

A cylinder has a 20 cm radius and 100 cm height.

Formula used:

Volume of cylinder   

Calculation:

The volume of the smaller cylinder  .

The Volume of the bigger cylinder   

Number of cylinders 

Hence the required number of cylinders is 20.

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Last updated on Jun 30, 2025

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