GED Math : Bar Graphs

Study concepts, example questions & explanations for GED Math

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Example Questions

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Example Question #21 : Bar Graphs

The following five countries rank highest in total energy consumption (source: CIA World Factbook website). Figures are given in megawatt-hours per year total:

A vertical bar graph is to be constructed so that its vertical axis is marked  at the bottom. The bar representing Japan will be about how many times as long as the bar representing India? 

Possible Answers:

 times as long.

 times as long.

 times as long.

 times as long.

Correct answer:

 times as long.

Explanation:

The bar representing Japan will reflect a total energy usage of about ; since the first  will be hidden due to the starting point of the vertical axis, the bar will only show 

 

By similar reasoning, the bar representing India will only show

 

Through some rounding, we see that about Japan is represented by a bar about 

 

as long as the bar that represents India.

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