Question

The given pattern of match sticks expressing in algebraic form is .

• A. 6n-1
• B. 5n-1
• C. 5n+1
• D. 6n+1

Answer 1

The correct option is C 5n+1

By comparing each term and the number of match sticks used, we can see a pattern. By generalising the pattern we will get,
When n = 1,
5n + 1 = 5 x 1 + 1 = 6
When n = 2,
5n + 1 = 5 x 2 + 1 = 11...