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Q. 44.1( 54 Votes )

Number of persons

Answer :

According to the question,

By taking a scale of 1 unit = 20 thousands, a bar graph of the above-given data can be constructed as follows:



(a) We can clearly observe that,


The age groups in which the population is same are 30 – 44 and 45 – 59.


(b) We know that,


The senior citizens are the people that are either from the age group of 60 – 74 or from the age group of 75 and above.


Hence,


We can calculate the number of senior citizens as follows:


Total no. of senior citizen = 80,000 + 40,000


= 1,20,000


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