Take the data giving the minimum and the maximum temperature of various cities given in the following table:

Temperatures of the cities as on 20.6.2006 |
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City |
Max. |
Min. |

Ahmedabad | 38 ºC | 29 ºC |

Amritsar | 37 ºC | 26 ºC |

Banglore | 28 ºC | 21 ºC |

Chennai | 36 ºC | 27 ºC |

Delhi | 38 ºC | 28 ºC |

Jaipur | 39 ºC | 29 ºC |

Jammu | 41 ºC | 26 ºC |

Mumbai | 32 ºC | 27 ºC |

Plot a double bar graph using the data and answer the following:

1) Which city has the largest difference in the minimum and maximum temperature on the given date?

2) Which is the hottest city and which is the coldest city?

3) Name two cities where maximum temperature of one was less than the minimum temperature of the other.

4) Name the city which has the least difference between its minimum and the maximum temperature.

#### Solution

A double bar graph for the given data is constructed as follows.

1) From the graph, it can be concluded that Jammu has the largest difference in its minimum and maximum temperatures on 20.6.2006.

2) From the graph, it can be concluded that Jammu is the hottest city and Bangalore is the coldest city.

3) Bangalore and Jaipur, Bangalore and Ahmedabad

For Bangalore, the maximum temperature was 28ºC, while minimum temperature of both cities, Ahmedabad and Jaipur, was 29ºC.

4) From the graph, it can be concluded that the city which has the least difference between its minimum and maximum temperatures is Mumbai.