Advertisements
Advertisements
Question
A paint company asked a group of students about their favourite colours and made a pie chart of their findings. Use the information to answer the following questions.
What percentage of the students like red colour?
Solution
| Class Intervals | Tally Marks | Frequency |
| 150 − 200 | II | 2 |
| 200 − 250 | III | 3 |
| 250 − 300 | IIII I | 6 |
| 300 − 350 | IIII | 5 |
| 350 − 400 | IIII II | 7 |
| 400 − 450 | IIII | 4 |
| 450 − 500 | III | 3 |
| Total | 30 | |
Total percentage of students = 100%
∴ 50 students = 100% – (30% + 20% + 25% + 15%)
= 100% – 90%
50 students = 10%
10% of total students = 50
∴ `10/100` (Total students) = 50
Total students = `(50 xx 100)/10` = 500
Total students = 500
20% of the students like red colour.
APPEARS IN
RELATED QUESTIONS
Comparison of parts of a whole may be done by a pie chart
A paint company asked a group of students about their favourite colours and made a pie chart of their findings. Use the information to answer the following questions.
What fraction of the students liked blue?
A paint company asked a group of students about their favourite colours and made a pie chart of their findings. Use the information to answer the following questions.
How many students did not like red colour?
A paint company asked a group of students about their favourite colours and made a pie chart of their findings. Use the information to answer the following questions.
How many students liked pink or blue?
A paint company asked a group of students about their favourite colours and made a pie chart of their findings. Use the information to answer the following questions.
How many students were asked about their favourite colours?
A survey gives the following information of food items preferred by people. Draw a Pie chart.
| Items | Vegetables | Meat | Salad | Fruits | Sprouts | Bread |
| No. of people | 160 | 90 | 80 | 50 | 30 | 40 |
Income from various sources for Government of India from a rupee is given below. raw a pie chart.
| Source | Corporation tax | Income tax | Customs | Excise duties | Service Tax | Others |
| Income (in paise) | 19 | 16 | 9 | 14 | 10 | 32 |
The data on modes of transport used by the students to come to school are given below. Draw a pie chart for the data
| Mode of transport | Bus | Cycle | Walking | Scooter | Car |
| Percentage of students | 40% | 30% | 15% | 10% | 5% |
The following table shows the percentage of demand of different plants.
| Plants | Rose | Lily | Tulip | Daisy | Dahlia |
| No. of Plants | 31 | 25 | 12 | 17 | 15 |
Complete the following table:
| Plants | No. of plants | Measure of central angle |
| Rose | 31 | `31/100 xx 360^circ = square` |
| Lily | 25 | `square` |
| Tulip | 12 | `square` |
| Daisy | 17 | `square` |
| Dahlia | 15 | `square` |
A survey was conducted for 180 people in a city. 70 ate Pizza, 60 ate burgers and 50 ate chips. Draw a pie diagram for the given information.
