How to Use Logic to Solve Problems

When facing an analogous question, it is vital that you use your sense of logic. It can help eliminate answer choices that might be distracting. For example look at the following problem: Airport is to airplane as gas station is to _____: A. Horse B. Skateboard C. Bicycle D. Car. The first step to figure out the relation between an airport and an airplane. Airplanes will stop at airports to refill on fuel so they can carry passengers on other flights to other places. So, the airport is the place of fueling for airplanes. Now, we can look at gas station and notice that it, too, is a place for fueling. Logic tells us that skateboards and bicycles don’t need fuel, so B and C are immediately eliminated. A horse needs food to fuel itself, but not the kind of food found at a gas station, so answer choice A can be eliminated. This just leaves answer choice D, car, which would make sense as cars need gas to fuel their engines.


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Use Logic

When faced with an analogy, it’s important to use logic. Now, that may seem very obvious to you, but by just using logic you can many times eliminate all the correct answer choices.


Up on the board is an analogy: Track is to run as water is to blank. First, we need to determine the relationship that exists in this analogy. We have the word track and the word run. Track is a location and run is an activity. The relationship here is that you run at a track.


The second location in our problem is water, so we need to determine the activity that goes on in the water. We know it’s not bike, and we know it’s not jog. You do swim in the water, and you don’t run a horse in the water.


By using logic, we were able to eliminate all the wrong answer choices, and we were able to quickly determine the right answer choice, which in this case is Swim.



Provided by: Mometrix Test Preparation

Last updated: 04/20/2018
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