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?

Open in App

Solution

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

Suggest Corrections

Similar questions

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

(a) Draw a bar graph to represent the above information and answer the following questions
(b) All persons in the age group of 60 and above are called senior citizens. How many senior citizens are there in the town ?

Q. Number of persons in various age groups in a town are represented by a bar graph. If all persons in the age group of 60 and above are called senior citizens. How many senior citizens are there in the town? Also find the two age groups who have the same population.

The number of persons in various age groups in a town is given in the following table:
Draw a bar graph to represent the above information and answer the following question. (Take 1 unit length = 20 thousand)
Which two age groups have the same population?

Calculate the mean and standard deviation for the following table, if the age distribution of a group of people are given below.

$\begin{matrix} Age & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 & 70 - 80 & 80 - 90 Number of persons & 3 & 51 & 122 & 141 & 130 & 51 & 2 \end{matrix}$

The age group and number of persons, who donated blood in a blood donation camp is given below. Draw a pie diagram from it.

Age group(Yrs)	20 - 25	25 - 30	30 - 35	35 -40
No. of persons	80	60	35	25

Join BYJU'S Learning Program