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Question

# A district consists of a urban area and a rural area. The temperature of the respective areas are recorded at different time of the day and tabulated as follows: Temperature (oC) Time Urban Area Rural Area 1730 1830 1930 2030 2130 2230 2330 26 25 25 24 24 23 23 22 23 22 22 21 21 21 Plot a double line graph and choose the same from the given options.

A
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B
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C
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Solution

## The correct option is C According to the tabulated data at 1730, urban area has a temperature of 26oC, while rural area has a temperature of 25oC, and so on. We plot line graphs of the temperatures corresponding to each type of areas and merge them to obtain a double line graph. Here, each data set is indicated with different color and/format. It is evident from the given data that the temperature of the urban area is overall more than the rural area. ∴ The upper line graph indicates the data for the urban area. This is depicted by option (c) with a proper marking of the plot.

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