Answer:
Algorithms
Explanation:
In psychology, an algorithm is a set of step-by-step procedures that help us get the answer to a particular problem.
In the example given, Ramesh employs all algebraic formulas he has learned to solve the problem. In other words, he employs all the sets of step-by-step procedures he's seen through the course and thanks to this he manages to get the answer of the math problem.
Thus, he's using algorithms to solve the problem.