8th Standard Maths English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Three

8th Standard

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Maths

Time : 00:15:00 Hrs
Total Marks : 15

    Part A

    15 x 1 = 15
  1. The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is

    (a)

    \(\frac { 34 }{ 99 } \)

    (b)

    \(\frac { -142 }{ 99 } \)

    (c)

    \(\frac { 142 }{ 99 } \)

    (d)

    \(\frac { -34 }{ 99 } \)

  2. \(\frac { 1 }{ 2 } \times \left( \frac { 1 }{ 3 } +\frac { 1 }{ 4 } \right) =\left( \frac { 1 }{ 2 } +\frac { 1 }{ 3 } \right) +\frac { 1 }{ 4 } \)

    (a)

    Closure property

    (b)

    Associative property

    (c)

    Distributive property

    (d)

    Commutative property

  3. A closed plane figure formed by three or more sides is called a

    (a)

    quadrilateral

    (b)

    pentagon

    (c)

    triangle

    (d)

    polygon

  4. If the area of a rectangle is 48m2n3 and whose length is 82mn2 then, its breadth is______

    (a)

    6mm

    (b)

    8m2n

    (c)

    7m2n2

    (d)

    6m2n2

  5. Common factor of 17abc, 34ab2, 51a2 b is _________.

    (a)

    17 abc

    (b)

    17 ab

    (c)

    17 ac

    (d)

    17 a2b2c2

  6. In the figure, which of the following statements is true?

    (a)

    AB = BD

    (b)

    BD < CD

    (c)

    AC = CD

    (d)

    BC = CD

  7. How many outcomes can you get when you toss three coins once?

    (a)

    6

    (b)

    8

    (c)

    3

    (d)

    2

  8. The sum which amounts to Rs.2662 at 10% p.a in 3 years compounded yearly is_______.

    (a)

    Rs.2000 

    (b)

    Rs.1800

    (c)

    Rs.1500

    (d)

    Rs.2500

  9. (a) \(\frac { x }{ 2 } \) = 10     (i) x = 4
    (b) 20 = 6x – 4   (ii) x = 1
    (c) 2x – 5 = 3 – x  (iii) x = 20
    (d) 7x – 4 – 8x = 20  (iv) x = \(\frac { 8 }{ 3 } \)
    (e) \(\frac { 4 }{ 11 } \)- x = \(\frac { -7 }{ 11 } \)   (v) x = –24

    (a)

    (i), (ii), (iv), (iii), (v)

    (b)

    (iii), (iv), (i), (ii), (v)

    (c)

    (iii), (i), (iv), (v), (ii)

    (d)

    (iii), (i), (v), (iv), (ii)

  10. The product of LCM and HCF of two numbers is 24. If one of the number is 6, then the other number is ________.

    (a)

    6

    (b)

    2

    (c)

    4

    (d)

    8

  11. If the square of the hypotenuse of an isosceles right triangle is 50 cm2, the length of each side is ____________.

    (a)

    25 cm

    (b)

    5 cm

    (c)

    10 cm

    (d)

    20 cm

  12. Two numbers are said to be co-prime numbers if their HCF is

    (a)

    2

    (b)

    3

    (c)

    0

    (d)

    1

  13. The number of digits in the square root of 123454321 is

    (a)

    4

    (b)

    5

    (c)

    6

    (d)

    7

  14. Inclusive series is a ________series.

    (a)

    continuous

    (b)

    discontinuous

    (c)

    both

    (d)

    none of these

  15. The best shopping choice is

    (a)

    always shop at brand name stores

    (b)

    the same thing my friends bought

    (c)

    compare the choices before buying

    (d)

    always buy at a regular shop

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