Video: Reading Data from a Three-Category Bar Graph Involving Subtraction

A hotel owner asked her guests how they traveled to her hotel. The given bar graph shows the mode of transport they used. How many more people traveled by airplane than by boat?

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Video Transcript

A hotel owner asked her guests how they traveled to her hotel. The given bar graph shows the mode of transport they used. How many more people traveled by airplane than by boat?

For this question, we’ll need to compare the airplane travel and the boat travel. The labels on our bar graph tell us which mode of transport goes to each bar. We’re looking at the airplane and the boat.

Looking at the airplane graph, we see that the bar goes all the way up to 10. So we can say that 10 people travel to the hotel by airplane. Using the same procedure, we can find out how many people traveled by boat. The bar goes up to the number two. And we can say that two people traveled to the hotel by boat.

The question is asking how many more people traveled by airplane than by boat. We take the 10 airplane travelers, subtract the two boat travelers. 10 minus two is eight.

So we can say that eight more people traveled by airplane than by boat.

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