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Question

In which of the following option both the numbers given are abstract number?
  1. 50 cm, 40
  2. 1 m, 40
  3. 30, 40
  4. 2.5 Litre


Solution

The correct option is C 30, 40
An abstract number is a number which does not refer to any particular unit. For example: 20, 30,, 40, 50, etc.

A concrete number is a number which refers to a particular unit and is meaningful. For example: 5 Kilogram, 2.5 Litre, 8 Metre.

Here, 2.5 Litre, 50 cm and 1m may represent the capacity of the vessel, height of the cuboid and side length of the cube respectively as shown below.





 

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