Question

When the successive term in a numerical pattern is formed by adding a (constant/ non-constant) value to the previous term, an arithmetic sequence is obtained.

Answer 1

An arithmetic sequence is obtained when the successive term in a numerical pattern is formed by adding a constant value to the previous term.
​​​​​​​
For example, $57,62,67,72,77$ is an arithmetic sequecne.

Here the difference between any two consecutive terms is $5$, which is a constant.