A formal-operational thinker and a concrete-operational thinker are both presented with three beakers containing red liquid and are told that some combination of the liquids will produce a green liquid. How would the manner in which the formal thinker solves the problem most probably differ from that of the concrete thinker?

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Formal thinkers, who possess the ability to think abstractly and systematically, are more likely to use a systematic approach when solving the problem by combining the liquids methodically and eliminating combinations until they find the one that produces a green color. In contrast, concrete thinkers, who rely on physical and tangible cues, might struggle to abstract the concepts involved in the task and may not use a systematic approach.

A Formal-Operational Thinker and a Concrete-Operational Thinker Are Both Presented