8th Standard Maths English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 3

8th Standard

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Maths

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

    Part A

    15 x 1 = 15
  1. The standard form of the sum \(\frac { 3 }{ 4 } +\frac { 5 }{ 6 } +\left( \frac { -7 }{ 12 } \right) \) is

    (a)

    \(\frac { 1 }{ 22 } \)

    (b)

    \(\frac { -1 }{ 2 } \)

    (c)

    \(\frac { 1 }{ 12 } \)

    (d)

    1

  2. Which of the following illustrates the inverse property for addition?

    (a)

    \(\frac { 1 }{ 8 } -\frac { 1 }{ 8 } =0\)

    (b)

    \(\frac { 1 }{ 8 } +\frac { 1 }{ 8 } =\frac { 1 }{ 4 } \)

    (c)

    \(\frac { 1 }{ 8 } +0=\frac { 1 }{ 8 } \)

    (d)

    \(\frac { 1 }{ 8 } -0=\frac { 1 }{ 8 } \)

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

    (a)

    Closure property

    (b)

    Associative property

    (c)

    Distributive property

    (d)

    Commutative property

  4. A part of the circumference of a circle is called

    (a)

    circular arc

    (b)

    segment

    (c)

    sector

    (d)

    chord

  5. 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

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

    (a)

    17 abc

    (b)

    17 ab

    (c)

    17 ac

    (d)

    17 a2b2c2

  7. If ΔABC~ΔPQR in which ∠A = 53o and ∠Q = 77o, then R is

    (a)

    50°

    (b)

    50°

    (c)

    70°

    (d)

    80°

  8. How many 2 digit numbers contain the number 7?

    (a)

    10

    (b)

    18

    (c)

    19

    (d)

    20

  9. The single discount % which is equivalent to two successive discount of 20% and 25% is

    (a)

    40%

    (b)

    45%

    (c)

    5%

    (d)

    22.5%

  10. What sum of money will earn Rs.500 as simple interest in 1 year at 5% per annum?

    (a)

    50000

    (b)

    30000

    (c)

    10000

    (d)

    5000

  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. Which is not correct?

    (a)

    \(\left( \cfrac { -1 }{ 4 } \right) ={ 4 }^{ -2 }\)

    (b)

    \(\left( \cfrac { -1 }{ 4 } \right) =\left( \cfrac { 1 }{ 2 } \right) ^{ 4 }\)

    (c)

    \(\left( \cfrac { -1 }{ 4 } \right) ^{ 2 }={ 16 }^{ -1 }\)

    (d)

    \(-\left( \cfrac { 1 }{ 4 } \right) ^{ 2 }={ 16 }^{ -1 }\)

  14. A ________ is a line graph for the graphical representation of the continuous frequency distribution.

    (a)

    frequency polygon

    (b)

    histogram

    (c)

    pie chart

    (d)

    bar graph

  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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