7th Standard Syllabus & Materials
7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - ஒன்றல்ல இரண்டல்ல Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - எங்கள் தமிழ் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Poem - Your Space Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - A Prayer to the Teacher Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Poem - The Listeners Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - The Wind on Haunted Hill Important Questions And Answers Study Material - QB365 Set A
Published on: 17/06/2021
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.
Download 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
TN 7th English T1 - Supplementary - On Monday Morning Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - Eidgah Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Social Science T1 - ECO - Production Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Social Science T1 - GEO - Interior of the Earth Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
