Suppose we use matchsticks to form letter C
Here, we used 3 matchsticks
Suppose, we want to Make more than one C
So,
2 Cs require 6 matchsticks
3 Cs require 9 matchsticks
4 Cs require 12 matchsticks
And so on………
We can say that,
Number of matchsticks = 3 × Number of C
Writing n = number of Cs
Number of matchsticks = 3n
Let’s Check
For n = 1, Number of matchsticks = 3 × 1 = 3
For n = 2, Number of matchsticks = 3 × 2 = 6
For n = 3, Number of matchsticks = 3 × 3 = 9
So, Writing
Number of matchsticks = 3n
makes our job easier.
Suppose we have to make 100 Cs
Number of matchsticks = 3 × 100
= 300