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Question

What is the number of matchsticks you need to make n number of 2's?


  1. 2n
  2. 5n
  3. 5+n
  4. Cannot tell without knowing the value of n


Solution

The correct option is B 5n

A 2 made using matchsticks is shown below.

It is understood that we would always require 5 matchsticks to make 2. So, to make 'n' '2's we need '5n' matchsticks.

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