Advertisements
Advertisements
Question
Given below is a pie chart showing the time spend by a group of 350 children in different games. Observe it and answer the questions that follow:
- How many children spend at least one hour in playing games?
- How many children spend more than 2 hours in playing games?
- How many children spend 3 or lesser hours in playing games?
- Which is greater — number of children who spend 2 hours or more per day or number of children who play for less than one hour?
Solution
a. Number of children who spend atleast 1 hour in playing games i.e. the number of children playing 1 hour or more than 1 hour
= (Total number of children) – (Number of children spend less than 1 hour)
= 350 – 6% of 350
= `350 - 6/100 xx 350`
= 350 – 21
= 329
b. Number of children who spend more than 2 hours in playing games
= (34 + 10 + 4)% of the total number of students
= 48% of 350
= `48/100 xx 350`
= 168
c. Number of children who spend 3 or lesser hours in playing games
= (34 + 30 + 16 + 6)% of total number of students
= 86% of 350
= `86/100 xx 350`
= 301
d. Number of children who spend 2 hours or more per day in playing games
= (30 + 34 + 10 + 4)% of total number of students
= 78% of total number of students
Number of children who spend less than one hour = 6% of total number of students
Clearly, number of children who play for 2 hours or more per day is greater than the number of children who play for less than 1 hour.
APPEARS IN
RELATED QUESTIONS
Area under different crops in a certain village is given below. Represent it by a pie diagram :
| Corps | Area (in Hectares) |
| Jowar | 80 |
| Wheat | 20 |
| Sugarcane | 60 |
| Vegetables | 20 |
Draw a pie chart showing the following information. The table shows the colours preferred by a group of people.
| Colours | Number of people |
| Blue | 18 |
| Green | 9 |
| Red | 6 |
| Yellow | 3 |
| Total | 36 |
Find the proportion of each sector. For example, blue is `18/36 = 1.2` ; green is `9/36 = 1/4` and so on. Use this to find the corresponding angles.
The marks obtained by a student in an examination out of 100 are given below. The total marks obtained in various subjects are as follows:
| Subject | Marks |
| Marathi | 85 |
| English | 85 |
| Science | 90 |
| Mathematics | 100 |
| Total | 360 |
Represent the above data using pie diagram
The annual investments of a family are shown in the adjacent pie diagram. Answer the following questions based on it.
(1) If the investment in shares is ₹ 2000, find the total investment.
(2) How much amount is deposited in the bank?
(3) How much more money is invested in immovable property than in mutual fund?
(4) How much amount is invested in post?
The following table shows the percentages of vehicles passing a signal. Find out the measures of central angle to show the information by a pie diagram and hence draw the pie diagram.
| Type of Vehicle | Bicycle | Two wheeler | Car | Bus | Rickshaw |
| Percentage | 10 | 30 | 20 | 20 | 20 |
Draw a pie-diagram for the following data of expenditure pattern in a family:
| Items | Food | Clothing | Rent | Education | Unforeseen events | Midicine |
| Expenditure (in percent) | 40% | 20% | 10% | 10% | 15% | 5% |
In the following figure, the pie-chart shows the marks obtained by a student in an examination. If the student secures 440 marks in all, calculate his marks in each of the given subjects.
The pie diagram in figure shows the proportions of different workers in a town. Answer the following question with its help.
How many workers are working in the administration ?
A survey of students was made to know which game they like. The data obtained in the survey is presented in the adjacent pie diagram. If the total number of students are 1000,
(1) How many students like cricket ?
(2) How many students like football ?
(3) How many students prefer other games ?
On an environment day, students in a school planted 120 trees under plantation project. The information regarding the project is shown in the following table. Show it by a pie diagram.
|
Tree name
|
Karanj | Behada | Arjun | Bakul | Kadunimb |
| No. of trees | 20 | 28 | 24 | 22 | 26 |
Subjective marks obtained by a student in an examination are given below:
| Subject | Marks |
| Marathi | 85 |
| English | 90 |
| Science | 85 |
| Mathematics | 100 |
| Total | 360 |
Draw a pie diagram to represent the above data.
The number of hours, spent by a school boy in different activities in a day is given below :
| Activity | Sleep | School | Play | Homework | Others | Total |
| Number of Hours | 7 | 7 | 2 | 4 | 4 | 24 |
Represent the above information using a pie diagram.
Absentees record of a class of 30 children is given in a graph.
(i) In which month there are more absentees?
(ii) In which month there are less absentees?
Draw a pie-chart for the favourite sweets of your family members
| Age group (in years) |
No. of Persons | Measure of central angle |
| 20 – 25 | 80 | `square/200 xx 360^circ = square` |
| 25 – 30 | 60 | `60/200 xx 360^circ = square` |
| 30 – 35 | 35 | `35/200 xx square = 63^circ` |
| 35 – 40 | 25 | `25/200 xx 360^circ = square` |
| Total | 200 | `square` |
In a pie chart, the total angle at the centre of the circle is ______.
Study the pie chart given below depicting the marks scored by a student in an examination out of 540. Find the marks obtained by him in each subject.
Shoes of the following brands are sold in Nov. 2007 at a shoe store. Construct a pie chart for the data.
| Brand | Number of pair of shoes sold |
| A | 130 |
| B | 120 |
| C | 90 |
| D | 40 |
| E | 20 |
In a district, the number of branches of different banks is given below:
| Bank | State Bank of India |
Bank of Baroda |
Punjab National Bank |
Canara Bank |
| Number of Branches | 30 | 17 | 15 | 10 |
Draw a pie chart for this data.
For the development of basic infrastructure in a district, a project of Rs 108 crore approved by Development Bank is as follows:
| Item Head | Road | Electricity | Drinking water | Sewerage |
| Amount In crore (Rs.) |
43.2 | 16.2 | 27.00 | 21.6 |
Draw a pie chart for this data.
