8th Standard Syllabus & Materials
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TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
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TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
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TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
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TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
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TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 04/11/2019
Term 2 Life Mathematics
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.
A family went to a hotel and spent Rs. 350 for the food and paid extra 5% as GST. Calculate the CGST and SGST.
2.
A woman bought some eggs at the rate of 4 eggs for Rs.18 and sold them at the rate of 5 eggs for Rs. 24. She gained Rs. 90 in selling all the eggs. How many eggs did she buy?
3.
Find the single discount which is equivalent to two successive discounts of 25% and 20% given on an article.
4.
The price of a rain coat was slashed from Rs. 1060 to Rs. 901 by a shopkeeper in the winter season to boost the sales. Find the rate of discount given by him.
5.
The marked price of an LED tube light is Rs. 550 and the shopkeeper offers a discount of 8% on it. Find the selling price of the LED tube light.
6.
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.
7.
A pre-owned car was bought for Rs. 240000. On repairs Rs.15000 was spent, Rs. 8500 was paid for its insurance. Then, it was sold for Rs. 258230. What is the gain or loss percentage?
8.
Ranjith bought a washing machine for Rs. 16150 and paid Rs. 1350 for its transportation. Then, he sold it for Rs. 19250. Find his gain or loss percentage.
9.
By selling a bicycle for Rs. 4275, a shopkeeper loses 5%. For how much should he sell it to have a profit of 5%?
10.
If the selling price of a LED TV is equal to \(\frac{5}{4}\) of its cost price, then find the gain / profit percentage.
1.
Cost of the food = Rs. 350
Extra 5% GST is equally shared by Central and State Governments at 2.5% each
∴ CGST = SGST = 350 x \(\frac { 2.5 }{ 100 } \) = Rs. 8.75
2.
Let the number of eggs bought by her be x.
Then, Cost Price = \(\frac { 18 }{ 4 } \times x= \frac { 9x }{ 2 } \)
Selling Price = Rs.\(\frac { 24 }{ 5 } \times x=\frac { 24x }{ 5 } \)
∴ Gain = S.P – C.P = \( \frac { 24x }{ 5 } -\frac { 9x }{ 2 } \)
= \(\frac { 48x-45x }{ 10 } =\frac { 3x }{ 10 } \)
Given, gain = Rs. 90
That is,\(\frac { 3x }{ 10 } \) = Rs. 90
∴ x = \(\frac { 90\times 10 }{ 3 } \) = 300
3.
Let the marked price of an article be Rs. 100.
First discount of 25% = 100 x \(\frac { 25 }{ 100 } \)= Rs. 25
∴ Price aft er fi rst discount = 100 − 25 = Rs. 75.
Second discount of 20% = 75 ×\(\frac { 20 }{ 100 } \) = Rs. 25.
∴ Price aft er second discount = 75 − 15 = Rs. 60.
Net selling price = Rs. 60.
∴ Single discount equivalent to two given successive discounts = (100-60)% = 40%.
4.
Given,
Discount = Marked Price –Selling Price
= 1060 – 901
= Rs. 159
∴ Discount = \(\frac { 159 }{ 1060 } \)× 100%
= 15%
5.
Marked price = Rs. 550 and Discount = 8%
∴ Discount = \(\frac { 8 }{ 100 } \)x 550 = Rs. 44
∴ Selling Price = Marked price – Discount
= Rs. 550 − 44
= Rs. 506
∴ The selling price of the tube light is Rs. 506
6.
Let the C.P of one strawberry box be Rs. x.
Then C.P of 20 strawberry boxes = 20 x and
S.P of 20 strawberry boxes = C.P of 16 strawberry boxes = 16 x
Thus, S.P < C.P, hence there is a loss.
Loss = C.P –S.P = 20 x − 16 x = 4 x
∴ Loss % =\(\left( \frac { Loss }{ C.P } \times 100 \right) \)%
=\(\left( \frac { 4x }{ 20x } \times 100 \right) \)%
= 20 %
7.
Total C.P of the car
= C.P + Overhead Expenses
= 24000 + 15000 +8500
= Rs. 263500
S.P = Rs. 258230
As S.P < C.P , there is a loss.
∴ Loss % = \(\left( \frac { loss }{ C.P } \times 100 \right) %\)%
= \(\left( \frac { 263500-258230 }{ 263500 } \times 100 \right) %\)%
= \(\left( \frac { 5270 }{ 263500 } \times 100 \right) %\)%
= 2%
∴ Loss percentage = 2%
8.
Total C.P of the washing machine
= C.P + Overhead Expenses
= 16150 + 1350 = Rs. 17500
S.P = Rs. 19250
Therefore, we find S.P > C.P.
Gain % = \(\left( \frac { Gain }{ C.P } \times 100 \right) %\)% = \(\left( \frac { 19250-17500 }{ 17500 } \times 100 \right) %\)
=\(\frac { 1750 }{ 17500 } \times 100\) = 10%
9.
S.P of the bicycle = Rs. 4275
Loss = 5%
∴ C.P =\(\frac { 100 }{ 100-loss% } \times S.P\)
= \(\frac { 100 }{ 95 } \times 4275\)
= Rs. 4500
Now,
C.P = Rs. 4500 and the desired profi t = 5%
∴ Desired S.P = \(\frac { 100+gain% }{ 100 } \times C.P\)
=\(\frac { 100+5 }{ 100 } \times 4500\)
= 105 x 45
= Rs. 4725
Hence, the desired selling price is Rs. 4725.
10.
Let the C.P of the LED TV be rs x.
∴ S.P = \(\frac { 5 }{ 4 } \)x
Profit = S.P – C.P = \(\frac { 5 }{ 4 } \)x - x = \(\frac { x }{ 4 } \)
∴Profit % =\(\left( \frac { Profit }{ C.P } \times 100 \right) %\)
=\(\left( \frac { { x }/{ 4 } }{ x } \times 100 \right) %\)
=\(\left( \frac { 1 }{ 4 } \times 100 \right) %\) = 25%
8th Standard Syllabus & Materials
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Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
