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: 02/11/2019
Term 2 Algebra
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 mobile vendor has 22 items, some which are pencils and others are ball pens. On a particular day, he is able to sell the pencils and ball pens. Pencils are sold for Rs.15 each and ball pens are sold at Rs.20 each. If the total sale amount with the vendor is Rs.380, how many pencils did he sell?
2.
Three consecutive integers, when taken in increasing order and multiplied by 2, 3 and 4 respectively, total up to 74. Find the three numbers.
3.
Two equal sides of an isosceles triangle are 5y−2 and 4y+9 units. The third side is 2y+5 units. Find ῾y᾿ and the perimeter of the triangle.
4.
The sum of three numbers is 58. The second number is three times of two-fifth of the first number and the third number is 6 less than the first number. Find the three numbers.
5.
The following is a table of values connecting the radii of a few circles and their circumferences (Taking \(\pi =\frac { 22 }{ 7 } \)) Illustrate the relation with a graph and find
(i) The radius when the circumference is 242 units.
(ii) The circumference when the radius is 24.5 units.
| Radius (r) | Circumference (2πr) |
| 7 | 2 x \(\frac { 22 }{ 7 } \) x 7=44 |
| 14 | 2 x \(\frac { 22 }{ 7 } \) x 14=88 |
| 21 | 2 x \(\frac { 22 }{ 7 } \) x 21=132 |
| 28 | 2 x \(\frac { 22 }{ 7 } \) x 28=176 |
| 35 | 2 x \(\frac { 22 }{ 7 } \) x 35=220 |
| 42 | 2 x \(\frac { 22 }{ 7 } \) x 42=264 |
| 49 | 2 x \(\frac { 22 }{ 7 } \) x 49=308 |
6.
Draw the graph of (i) y = −3 x ii) y = x −4 iii) y = 2x + 5
7.
A line passing through (4, −2) and intersects the Y-axis at (0, 2). Find a point on the line in the second quadrant.
8.
Will a line pass through (2, 2) if it intersects the axes at (2, 0) and (0, 2).
9.
Use the graph to determine the coordinates where each figure is located
a) Star _______
b) Bird _______
c) Red Circle _______
d) Diamond _______
e) Triangle _______
f) Ant _______
g) Mango _______
h) Housefly _______
i) Medal _______
j) Spider _______
10.
The denominator of a fraction exceeds its numerator by 8. If the numerator is increased by 17 and the denominator is decreased by 1, we get \(\frac { 3 }{ 2 } \). Find the original fraction.
11.
A number consists of two digits whose sum is 9. If 27 is subtracted from the original number, its digits are interchanged. Find the original number.
12.
A total of 90 currency notes, consisting only of Rs.5 and Rs.10 denominations, amount to Rs.500. Find the number of notes in each denomination.
13.
The sum of three consecutive odd numbers is 75. Which is the largest among them?
14.
Find x and m: (i)\(\frac { 3x-2 }{ 4 } =\frac { (x-3) }{ 5 } =-1\)
(ii) \(\frac { m+9 }{ 3m+15 } =\frac { 5 }{ 3 } \)
15.
Find x: (i) – 3(4x + 9) = 21 (ii) 20 – 2 ( 5 – p) = 8 (iii) (7x – 5) – 4(2 + 5x) = 10(2 – x)
1.
12 pencils
2.
Next two consecutive integers are x + 1 and x + 2
They are taken in increasing order and multiplied by 2, 3, and 4 respectively.
(x) × (2) = 2x
(x + 1) × 3 = 3x + 3
(x + 2) × 4 = 4x + 8
These 3 integers add up to 74,
⇒ 2x + 3x + 3 + 4x + 8 = 74
⇒ 9x + 11 = 74
⇒ 9x = 74 - 11
⇒ 9x = 63
⇒ x = 63/9 = 7
⇒ x + 1 = 8, x + 2 = 9
Thus, the three integeres are 7, 8 and 9
3.
Since we have given that
Equal sides:
and
Length of third side = 2y+5
Since above two sides are equal.
5y-2 = 4y+9
5y-4y = 9+2
y = 11 units
Length of first side =
Length of second side =
Length of third side =
Perimeter of triangle would be
y = 11 units p = 133 units
4.
x = 20
5.
6.
(i) y = -3x
| x | 1 | 2 | 3 | 4 |
| y | -3 | -6 | -9 | -12 |
(ii) y = x - 4
| x | y = x- 4 |
| -2 | -2 - 4 = -6 |
| -1 | -1 - 4 = -5 |
| 0 | 0 - 4 = -4 |
| 1 | 1 - 4 = -3 |
| 2 | 2 - 4 = -2 |
| x | -2 | -1 | 0 | 1 | 2 |
| y | -6 | -5 | -4 | -3 | -2 |
(iii) y=2x+5
| x | y = 2x + 5 |
| -2 | 2(-2) + 5 = 1 |
| -1 | 2(-1) + 5 = 3 |
| 0 | 2(0) + 5 = 5 |
| 1 | 2(1) + 5 - 7 |
| 2 | 2(2) + 5 = 9 |
| x | -2 | -1 | 0 | 1 | 2 |
| y | 1 | 3 | 5 | 7 | 9 |
7.
From the graph, the points (- 2, 4) and (- 3, 5) lie on the line, which is passing through (4, - 2) and (0, 2) in the second quadrant.
8.
The line will not passes through (2, 2) if it intersects the axes at (2, 0) and (0, 2).
9.
a) (3, 2)
b) (- 2, 0)
c) (- 2, - 2)
d) (- 2, 2)
e) (-1, -1)
f) (3, -1)
g) (0, 2)
h) (2, 0)
i) (- 3, 3)
j) (0, -2)
10.
\(\frac { 13 }{ 21 } \)
11.
63
12.
(80,10) notes
13.
27
14.
(i) x = −2
(ii) m = −4
15.
(i) x = −4
(ii) p = −1
(iii) x = −11
8th Standard Syllabus & Materials
8th Standard
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NEW8th Standard
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NEW8th Standard
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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
