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Vubar
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In the graph, each circle represents an individual star. The position
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 Updated on: 11 Jun 2024, 01:58
Originally posted by Vubar on 23 Feb 2022, 04:15.
Last edited by Bunuel on 11 Jun 2024, 01:58, edited 11 times in total.
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65% (02:08) correct 35% (02:21) wrong based on 4078 sessions

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In the graph, each circle represents an individual star. The position of the circle’s center indicates the star’s temperature in kelvins (K) and its luminosity (rate of energy emission) relative to that of the sun (Lsun). Note that higher temperatures are to the left. The size of the circle indicates the relative physical size of the star, and the labels indicate the types of stars shown.

Select from each of the drop-down menus the option that creates the most accurate statement based on the information provided.

If it is assumed that one of the stars on the graph represents the sun, it must be that the sun is a star.

Apart from the main sequence stars, the group of stars with the greatest range of temperatures is the group of


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In the graph, each circle represents an individual star. The position
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16 Dec 2023, 20:54
Video solution here (2:39):

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In the graph, each circle represents an individual star. The position
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29 Sep 2022, 23:49
Hi, sorry for the delayed reply!

For the first question:
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We know the sun must be a main sequence star, because the y axis shows us how bright the stars are compared to the sun. So the sun itself would have a value of 1, on the y-axis, and only main sequence stars have a value of 1 on the y axis.

For the second question:
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To see the range of temperatures, we are looking for the widest spread on the x axis. Main sequence is not included, so we are comparing the other groups. However, the x axis is not uniform (the furthest left side goes from 40,000 to 20,000 while the right side goes from 5000 to 2500). Because of this, we can see that the white dwarfs are spread across many thousands of degrees more than any other group (excluding the main sequence).

I hope that helps!­
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mmdfl
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In the graph, each circle represents an individual star. The position
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14 Feb 2024, 04:40
gmatninja also solved this https://youtu.be/tE0_JvDsRqc?list=PLiaK ... puFb&t=962
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In the graph, each circle represents an individual star. The position
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11 Jun 2024, 02:33
­Here is a detailed video solution for this interesting question. See how this question can be solved in the test environment using "Owning the Dataset" approach.


Let us know if you have any questions.­

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In the graph, each circle represents an individual star. The position
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01 Dec 2024, 02:41
This question is hard beacuse of its graph trap. i.e the temperature is increasing in the reverse order from right to left and the scale is doubling on every point.
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In the graph, each circle represents an individual star. The position
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30 Dec 2025, 12:34
watch Gmat NINJA video. its there
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In the graph, each circle represents an individual star. The position
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13 Sep 2026, 16:50
This question is a great example of the importance of understanding graphs, including legends, axes, labels, and any accompanying text, before answering the questions. Video solution here:
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