Question

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

$\begin{array}{ccccccc}\text{Age}& 1-14& 15-29& 30-44& 45-59& 60-74& 75\text{and}\\ \text{group}& & & & & & \text{above}\\ \text{(in years)}& & & & & & \\ \text{Number}& 2\text{lakhs}& \text{1 lakh 60}& \text{1 lakh 20}& \text{1 lakh 20}& \text{80}& \text{40}\\ \text{of persons}& \text{thousands}& \text{thousands}& \text{thousands}& \text{thousands}& \text{thousands}& \text{thousands}\end{array}$

Draw a bar graph to represent the above information and answer the following questions :
a) Which two age groups have the 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

a) 30-44 and 45 – 59 are the two age groups with the same population.
b) Senior citizens are the persons between the age group of either 60-74 or from 75 above.
Therefore, Number of senior citizens in the town =80000+40000
= 1 lakh 20 thousand
Hence, the number of senior citizens in the town is 1 lakh 20 thousand.