Algebra - One Mark Questions

8th Standard

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Maths

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 1 = 5
  1. The product of 7p3 and (2p2)2 is

    (a)

    14p12

    (b)

    28P7

    (c)

    9p7

    (d)

    11p12

  2. The missing terms in the product - 3m3n x 9(_) = ___________m4n3 are

    (a)

    mn2, 27

    (b)

    m2n, 27

    (c)

    m2n2, -27

    (d)

    mn2, -27

  3. If the area of a square is 36x4y2t hen, its side is______

    (a)

    6x4y2

    (b)

    8x2y2

    (c)

    6x2y2

    (d)

    6x2y

  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. If the area of a rectangular land is(a- b)− sq.units whose breadth is (a - b) then, its length is__________

    (a)

    a - b

    (b)

    a + b

    (c)

    a2- b

    (d)

    (a + b)2

  6. 3 x 1 = 3
  7. \(\frac{18 m^{4}(-)}{2 m^{3} n^{3}}\) ______mn5

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    \(\cfrac { 18{ m }^{ 4 }(n^{ 98 }) }{ 2m^{ (3) }{ n }^{ 3 } } =9mn^{ 5 }\)

  8. \(\frac{\left.l^{4} m^{5} n^{(}-\right)}{\left.2 l m^{(-}\right) n^{6}}=\frac{l^{3} m^{2} n}{(-)}\)

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    \(\cfrac { { I }^{ 4 }{ m }^{ 5 }{ n }^{ (7) } }{ 2lm^{ (3) }{ n }^{ 6 } } =\cfrac { { l }^{ 3 }{ m }^{ 2 }n }{ 2 } \)

  9. \(\cfrac { { 42a }^{ 4 }{ b }^{ 5 }\left( \_ \right) }{ { 6a }^{ 4 }{ b }^{ 2 } } =\left( \_ \right) { b }^{ 3 }{ c }^{ 2 }\)

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     \(\cfrac { { 42a }^{ 4 }{ b }^{ 5 }\left( c^2 \right) }{ { 6a }^{ 4 }{ b }^{ 2 } } =\left( 7 \right) { b }^{ 3 }{ c }^{ 2 }\)

  10. 2 x 1 = 2
  11. 8x3y ÷ 4x= 2xy

    (a) True
    (b) False
  12. 7ab÷ 14ab = 2b2

    (a) True
    (b) False

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