7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - தகவல் செயலாக்கம் Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - தகவல் செயலாக்கம் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - வடிவியல் Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - வடிவியல் Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - வடிவியல் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - இயற்கணிதம் Important Questions And Answers Study Material - QB365 Set C
Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 7 Maths subject.It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 7th 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.
An item was sold at Rs. 200 at a loss of 4 %. What is its cost price.
2.
A shopkeeper bought a chair for Rs. 325 and sold it for Rs.350. Find the profit percentage.
3.
Kuzhal’s mother makes dosa by mixing the batter made from 1 portion of Urad dhal with 4 portions of rice. Represent each of the ingredients used in the batter as percentage.
4.
There are 560 students in a school. Out of 560 students, 320 are boys. Find the percentage of girls in that school.
5.
Out of 20 beads, 5 beads are red. What is the percentage of red.
1.
To find the cost price,
Loss per cent = \(\cfrac { Loss }{ C.P } \times 100\)
\(4\%=\cfrac { Loss }{ C.P } \times 100\)
\(\\ 4\%=\cfrac { Loss }{ 200 } \times 100\)
Loss
C.P = S.P + Loss
= 200 + 8
= 208
Hence the cost price of the item is Rs.208.
2.
\(Profit\quad percent=\cfrac { Profit }{ C.P } \times 100\)
= \(\cfrac { 25 }{ 325 } \times 100=\cfrac { 100 }{ 13 } =7\cfrac { 9 }{ 13 } \%\)
3.
Representing ingredients used in the batter as ratio, we get, rice : urad dhall = 4 :1
Now, the total number of parts is 4 +1 = 5 .
That is \(\cfrac { 4 }{ 5 } \) portion of rice is mixed with \(\cfrac { 1 }{ 5 } \) portion of urad dhall.
Thus, the percentage of rice would be \(\cfrac { 4 }{ 5 } \times 100\%=\cfrac { 400 }{ 5 } =80\%\)
The percentage of urad dhall would be \(\cfrac { 1 }{ 5 } \times 100\%=\cfrac { 100 }{ 5 }\% =20\%\)
4.
Total number of students = 560
Number of boys = 320
Number of girls = 560 – 320 = 240
\(Percentage=\cfrac { 240 }{ 560 } \times 100\%=\cfrac { 24 }{ 56 } \times 100\%\)
= \(\cfrac { 3 }{ 7 } \times 100\%=\cfrac { 300 }{ 7 } \%\)
= 42.86%
5.
We have \(\cfrac { 5 }{ 20 } =\cfrac { 5 }{ 20 } \times \cfrac { 100 }{ 100 } =\cfrac { 5 }{ 20 } \times 100\%=\cfrac { 500 }{ 20 }\% =25\%\)
7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - இயற்கணிதம் Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - இயற்கணிதம் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - அளவைகள் Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - அளவைகள் Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
