Question

Number of persons in various age groups in a town is given in the following table.

Age group	1 − 14	15 − 29	30 − 44	45 − 59	60 −74	75 and above
Number of persons	2 lakhs	1 lakhs 60 thousands	1 lakh 20 thousands	1 lakh 20 thousands	80	40 Thousands

Draw a bar graph to represent the above information and answer the following questions. (take 1 unit length = 20 thousands)

(a) Which two age groups have same population?

(b) All persons in the age group of 60 and above are called senior citizens. How many senior citizens are there in the town?

Answer 1

By taking a scale of 1 unit length = 20 thousands, a bar graph of the above given data can be drawn as follows.

(a) 30 − 44 and 45 − 59 are the two age groups which have the same population.

(b) It can be inferred that senior citizens are the people who are either from age group 60 − 74 or from age group 75 and above.

Hence, number of senior citizens = 80,000 + 40,000

= 1 lakh 20 thousand