8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 15/06/2021
QB365 provides detailed and simple solution for every book back questions in class 8 Maths subject.It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 8th Standard Maths question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Maths Test1.
Draw a histogram for the following data.
| Mid Value (x) | 15 | 25 | 35 | 45 | 55 | 65 | 75 |
| Frequency (f) | 12 | 24 | 30 | 18 | 26 | 10 | 8 |
2.
Form a continuous frequency distribution table and draw histogram from the following data.
| Age (in years) | No. of persons |
| Under 5 | 1 |
| Under 10 | 12 |
| Under 20 | 26 |
| Under 25 | 27 |
| Under 30 | 35 |
| Under 35 | 38 |
| Under 40 | 45 |
| Under 45 | 48 |
| Under 50 | 53 |
3.
Draw a pie chart for the given table.
| Continent | Asia | Africa | North America | South America | Europe | Australia | Antarctica |
| Area | 30 % | 20 % | 16 % | 12 % | 7 % | 6 % | 9 % |
4.
In a study of dental problem, the following data were obtained.
| Ages | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 |
| No. of patients | 5 | 13 | 25 | 14 | 30 | 35 | 43 | 50 |
Represent the above data by a frequency polygon
5.
Write any five points from the given pie chart information regarding pollutants entering in the oceans.
1.
Here given mid value. We convert it into continuous distribution.
| Class interval | Frequency |
| 10-20 | 12 |
| 20-30 | 24 |
| 30-40 | 30 |
| 40-50 | 18 |
| 50-60 | 26 |
| 60 -70 | 10 |
| 70-80 | 8 |
2.
Rearrange the above table into continuous of distribution then the table becomes as follows.
| Age (in years) | No. of persons |
| 0-5 | 1 |
| 5-10 | 12 - 1 = 11 |
| 10- 15 | 19- 12 = 7 |
| 15-20 | 26 -19 = 7 |
| 20-25 | 27 -26 = 1 |
| 25-30 | 35 - 27 = 8 |
| 30-35 | 38 - 35 = 3 |
| 35-40 | 45 - 38 = 7 |
| 40-45 | 48 - 45 = 3 |
| 45-50 | 53 - 48 = 5 |
3.
4.
Find the midpoint of the class intervals and tabulate it.
| Age | Mid point(x) | No of patients |
| 0-10 | 5 | 5 |
| 10-20 | 15 | 13 |
| 20-30 | 25 | 25 |
| 30-40 | 35 | 14 |
| 40-50 | 45 | 30 |
| 50-60 | 55 | 35 |
| 60-70 | 65 | 43 |
| 70-80 | 75 | 50 |
5.
5% of litter and 5% of off shore oil enter in the oceans.
Industrial waste water and Martime transportation enter in the oceans with same amount of 10%
Air pollutants entering in the oceans IS same as the Farm run off is 20%
All the pollutants make the ocean pollute and it is very harmful to the ocean animals.
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
