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Multiple bar graphs
            A single bar graph uses one bar for each value to represent the data. A multiple bar graph gives
            information of more than one type side by side.
            Example 10: Study the multiple bar graph of the top five medal winning countries in the XIX
                          Commonwealth Games, New Delhi–2010.

                          The three adjacent  bars corresponding to each country represent the number of
                          medals of each type won.
                                       XIX Commonwealth Games, New Delhi–2010

                              Y                                                      Scale: 1 cm = 10 medals
                             80
                                                                     Gold          Silver       Bronze

                             70

                             60


                             50
                         Number of medals  40



                             30


                             20

                             10

                                                                                                    X
                              0      Australia      India       England      Canada      South Africa
                                                               Countries

                          Looking at the multiple bar graph, answer the following questions.
                          (a)  What is the number of silver medals won by Australia?

                          (b)  Which country has won a total of 101 medals?

                          (c)  Which country has won the maximum number of gold medals?
                          (d)  For which countries, G > S > B, where G, S and B are the number of gold, silver
                              and bronze medals respectively?
                                                   G + B
                          (e)  For which country          = S, where G, S and B are the number of gold, silver
                                                     2
                              and bronze medals respectively?

                          (f)  What is the ratio of the number of bronze medals won by India to the number
                              of gold medals won by South Africa?
            Solution:     (a)  Australia has won 55 silver medals.

                          (b)  India has won a total of 38 + 27 + 36 = 101 medals
                          (c)  Australia


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