General
General
Easy
Question
John creates an increasing pattern with triangles. He records the number of triangles in each shape in a table of values. He also records the number of triangles he adds each time he makes a new shape.
- 10
- 12
- 15
- 14
Hint:
We are given a sequence made using different number of triangles by John. There are four shapes with increasing number of triangles. We are also given a table with number of triangles. Using this information, we have to find the number of triangles fourth shape will have.
The correct answer is: 12
The number of shape and number of triangles used to make the shape are as follows:
First shape has 3 triangles.
Second shape has 6 triangles.
Third shape has 9 triangles.
If we see, the number of triangles used is increasing by 3. With every shape, the number is increasing by 3.
So, fourth shape will have (9 + 3) = 12 triangles.
The fourth shape will have 12 triangles.
While solving such questions, we should be careful and the sequence.
