When a person uses information that she or he has been taught to solve problems in a rational way, Robert Sternberg's triarchic theory of intelligence would suggest that person was demonstrating what kind of intelligence?

Componential intelligence

Explanation:

Robert Sternberg was a Psychologist who proposed the triarchical theory of intelligence.

They include:

The Componential intelligence

The Contextual Intelligence

The Experiential intelligence.

The Componential intelligence deals with using data analysis to solve problems as a result of something that has been learned in the past.

The Contextual intelligence is concerned with the intelligence needed for individuals to be able to face the real world.

The Experiential intelligence involves using previous experiences to solve a problem.