Advertisements
Advertisements
Question
Find the correct answer from the alternatives given.
The persons of O - blood group are 40%. The classification of persons based on blood groups is to be shown by a pie diagram. What should be the measures of angle for the persons of O - blood group?
Options
114°
140°
104°
144°
Solution
144°
Explanation:
In a pie diagram 100% = 360° as it is a complete circle 100% data is represented by 360°.
1% data is represented by `360/100` = 3.6°
40% data is represented by = 3.6 × 40 = 144°
measures of angle for the persons of O- blood group = 144°
APPEARS IN
RELATED QUESTIONS
A group of 360 people were asked to vote for their favourite season from the three seasons rainy, winter and summer.
- Which season got the most votes?
- Find the central angle of each sector.
- Draw a pie chart to show this information.
| Season | No. of votes |
| Summer | 90 |
| Rainy | 120 |
| Winter | 150 |
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 number of students in a hostel speaking different languages is given below. Display the data in a pie chart.
| Language | Hindi | English | Marathi | Tamil | Bengali | Total |
| Number of students | 40 | 12 | 9 | 7 | 4 | 72 |
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 |
The marks obtained by a student in different subjects are shown. Draw a pie diagram showing the information.
| Subject | English | Marathi | Science | Mathematics | Social science | Hindi |
| Marks | 50 | 70 | 80 | 90 | 60 | 50 |
The following table shows the percentages of demands for different fruits registered with a fruit vendor. Show the information by a pie diagram.
| Fruits | Mango | Sweet lime | Apples | Cheeku | Oranges |
| Percentages of demand | 30 | 15 | 25 | 20 | 10 |
The number of hours, spent by a school boy on different activities in a working day, is given below:
| Activities | Sleep | School | Home | Play | Others | Total |
| Number of hours | 8 | 7 | 4 | 2 | 3 | 24 |
Present the information in the form of a pie-chart.
Following data gives the break up of the cost of production of a book:
| Printing | Paper | Binding charges | Advertisement | Royalty | Miscellaneous |
| 30% | 15% | 15% | 20% | 10% | 15% |
Draw a pie- diagram depicting the above information.
Following is the break up of the expenditure of a family on different items of consumption:
| Items | Food | Clothing | Rent | Education | Fuel etc. | Medicine | Miscellaneous |
| Expenditure (in Rs) | 1600 | 200 | 600 | 150 | 100 | 80 | 270 |
Draw a pie-diagram to represent the above data.
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 ?
The following diagram represents expenditure on different items in constructing a building.
If the total construction cost of a building is Rs.540000, answer the following questions :
Find the expenditure on labour.
Area under different crops in a certain village is given below. Represent it by pie diagram:
| Crop | Area (in hectare) |
| Jowar | 8000 |
| Wheat | 6000 |
| Sugarcane | 2000 |
| Vegetable | 2000 |
| ordinary bread | 320 |
| fruit bread | 80 |
| cakes and pastries | 160 |
| biscuits | 120 |
| others | 40 |
|
Total
|
720 |
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?
| 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` |
Students of a class voted for their favourite colour and a pie chart was prepared based on the data collected.
Observe the pie chart given below and answer questions based on it.
If 400 students voted in all, then how many did vote ‘Others’ colour as their favourite?
A pie chart is used to compare ______ to a whole.
In a pie chart a whole circle is divided into sectors.
In a pie chart two or more central angles can be equal.
