8th Standard Syllabus & Materials
8th Standard
Tamilnadu 8th Standard கணிதம் இயற்கணிதம் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard கணிதம் எண்கள் Important Questions And Answers Study Material - QB365 Set B
NEW8th Standard
Tamilnadu 8th Standard கணிதம் எண்கள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
Tamilnadu 8th Standard Social Science பொருளியல் - பொது மற்றும் தனியார் துறைகள் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science குடிமையியல் - நீதித்துறை Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science குடிமையியல் - பாதுகாப்பு மற்றும் வெளியுறவுக் கொள்கை Important Questions And Answers Study Material - QB365
Published on: 18/09/2019
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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.
There are 2 vegetarian entry options and 5 meat entry options on a dinner menu. What number of ways one can opt a dinner for anyone of it?
2.
Rani take a survey with five 'yes' or 'No' answers. How many different ways could she complete the survey?
3.
A company puts a code on each different product they sell. The code is made up of 3 numbers and 2 letters. How many different codes are possible?
4.
Think why this graph colouring is invalid?
5.
Find any four SETs among these set of cards.
6.
(i) Find out the total time taken by the bus to reach from A to E via B , C and D.
(ii) Find which is the shortest route from A to E.
7.
Convert the tree diagram into a numeric expression.
8.
Colour the following pattern with as few colours as possible but make sure that no two adjacent sections are of the same colour.
9.
An examination paper has 3 sections, each with five questions and students are instructed to answer one question from each section. In how many different ways of can the questions be answered?
10.
Shanthi has 5 chudithar sets and 4 frocks. In how many possible ways, can she wear either a chudithar or a frock?
11.
Colour the regions in the maps with few colours as possible but make sure that no two adjacent countries are of the same colour
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12.
Ramya wants to paint a pattern in her living room wall with a minimum budget. Help her to colour the pattern with 2 colours but make sure that no two adjacent boxes are the same colour. The pattern is shown in the picture.
13.
A safety locker in a jewel shop requires a 4 digit unique code. The code has the digits from 0 to 9. How many unique codes are possible?
14.
If you have 2 school bags and 3 water bottles then, in how many different ways can you choose each one of them, while going to school ?
15.
In how many ways, can the teacher choose 3 students in all, one each from 10 students in VI std, 15 students in VII std and 20 students in VIII std to go to an excursion?
1.
Number of veg options 2
Number of meat option 5
One can opt for anyone dinner
∴ Total number of ways 2 + 5 = 7 ways
2.
There are 5 stages Question - 1
Question - 2
Question - 3
Question - 4
Question - 5
There are 2 choices for each question (Yes / No)
∴ Total number of possible ways to answer
= 2 x 2 x 2 x 2 x 2 = 32 ways.
3.
There are 5 stages, Number - 1
Number - 2
Number - 3
Letter - 1
Letter - 2
There are 10 possible numbers 0 to 9
There are 26 possible letters A to Z.
∴ We have 10 x 10 x 10 x 26 x 26 = 6,76,000 possible codes.
4.
The objective of graph colouring is to assign minimum number of colours to the verties do not have the same colour.
Here adjacent edges have the same colour.
∴ It is invalid.
5.
6.
(1) Route ⇒ A⟶ B⟶ C⟶ D⟶ E
Time taken ⇒ (7 + 5 + 3 + 6) hrs = 21 hrs
| Available routes | Time taken |
| a) A ⟶ B⟶ C⟶ D ⟶ E | 7 + 5 + 3 + 6 = 21 hrs |
| b) A⟶ B ⟶ D ⟶ E | 7 + 4 + 6 = 17 hrs |
| c) A ⟶ B ⟶C⟶ E | 7 + 5 + 8 = 20 hrs |
Shortest route ⇒ A⟶ B ⟶ D ⟶ E
7.
(10 x 5) + (9 x 4)
8.
9.
The tree diagram for this may be
∴ Number of possible ways to select one questions from each of 3 sections is 3 x 5 = 15 ways
10.
Shanthi wears a chudithar in 5 different ways.
She also wears a frock in 4 different ways.
So she wears either a chudithar or a frock in 5 + 4 different ways.
That is 9 different ways.
11.
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more possible ways
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more possible ways
12.
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More possible ways
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More possible ways
13.
The first number can be selected in 10 different ways.
The second number can be selected in 10 different ways.
The third number can be selected in 10 different Ways.
The fourth number can be selected in 10 different ways.
The four digit code is selected in 10 x 10 x 10 x 10 different ways.
That is 10000 ways.
14.
The student has 2 school bags and 3 water bottles.
Therefore he can carry both a school bag and a water bottle in 6 (2 x 3) different possible ways.
15.
The teacher is going to select one student from class VI out of 10 students in 10 ways from class VII out of 15 students in 15 ways and from class VIII out of 20 students in 20 ways.
ஃ Number of ways 3 students can be selected = 10 + 15 + 20 = 45 ways
8th Standard Syllabus & Materials
8th Standard
Tamilnadu 8th Standard Social Science புவியியல் - புவிப்படங்களைக் கற்றறிதல் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science புவியியல் - கண்டங்களை ஆராய்தல் (ஆப்பிரிக்கா, ஆஸ்திரேலியா மற்றும் அண்டார்டிகா) Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science புவியியல் - தொழிலகங்கள் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science வரலாறு - காலங்கள் தோறும் இந்தியப் பெண்களின் நிலை Important Questions And Answers Study Material - QB365
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
