Fractions


  1. The H.C.F. of 0.54, 1.8 and 7.2 is ?
    1. 1.8
    2. 0.18
    3. .018
    4. 18

  1. View Hint View Answer Discuss in Forum

    H.C.F. = (H.C.F. of Numerators) / ( L.C.M. of Denominators)

    Correct Option: B

    The given number are 0.54,1.80 and 7.20
    So given number can be represented as fraction 54/100, 180/100 and 720/100
    H.C.F. of 54, 180 and 720 is 18
    ∴ H.C.F. of given number= 18 / 100
    = 0.18


  1. which of the following fraction are in ascending order ?
    1. 16/19, 11/14, 17/22
    2. 11/14, 16/19, 17/22
    3. 17/22, 11/14, 16/19
    4. 16/19, 17/22, 11/14

  1. View Hint View Answer Discuss in Forum

    16/19 =0.842,
    11/14 =0.785 and
    17/22 = 0.772

    Correct Option: C

    16/19 =0.842,
    11/14 =0.785 and
    17/22 = 0.772
    ∴ 0.772 < 0.785 < 0.842
    or 17/22 < 11/14 < 16/19.



  1. Exp. = (.35 x .0015) / (.25 x .07) written as a percentage is ?
    1. 0.3 %
    2. 3 %
    3. 30 %
    4. None of these

  1. View Hint View Answer Discuss in Forum

    Exp. = (.35 x .0015) / (.25 x .07)
    = ( 35 x 15) / (25 x 7 x 100)
    = (3/100) x 100 %

    Correct Option: B

    Exp. = (.35 x .0015) / (.25 x .07)
    = ( 35 x 15) / (25 x 7 x 100)
    = (3/100) x 100 %
    = 3%


  1. The square root of (0.324 x 0.081 x 4.624) / (1.5625 x 0.0289 x 72.9 x 64) is ?
    1. 24
    2. 2.4
    3. 0.024
    4. None of these

  1. View Hint View Answer Discuss in Forum

    Given expression =√(0.324 x 0.081 x 4.624) / (1.5625 x 0.0289 x 72.9 x 64)
    = √( 324 x 81 x 4624) / (15625 x 289 x 729 x 64)
    = √9 / 15625
    = 3 /125

    Correct Option: C

    Given expression =√(0.324 x 0.081 x 4.624) / (1.5625 x 0.0289 x 72.9 x 64)
    = √( 324 x 81 x 4624) / (15625 x 289 x 729 x 64)
    = √9 / 15625
    = 3 /125
    = 0.024



  1. 0.289/0.00121 = ?
    1. 170 / 11
    2. 17 / 110
    3. 17 / 1100
    4. 17 / 11

  1. View Hint View Answer Discuss in Forum

    0.289 / 0.00121
    = √ 0.28900 / 0.00121
    = √ 28900 / 121

    Correct Option: A

    0.289 / 0.00121
    = √ 0.28900 / 0.00121
    = √ 28900 / 121
    = 170 / 11