Question

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

• A. 2n
• B. 5n
• C. 5+n
• D. Cannot tell without knowing the value of n.

Answer 1

The correct option is B

5n

The number 2 made using matchsticks is shown below.

It is clear from the arrangement that we would always require 5 matchsticks to make the number 2. So, inorder to make n number of 2's, we need 5n matchsticks.