Fractions


  1. 0.8 x ? =0.0004
    1. .0005
    2. .005
    3. .5
    4. .00005

  1. View Hint View Answer Discuss in Forum

    Let 0.8y = 0.0004
    Then,y = 0.0004 / 0.8

    Correct Option: A

    Let 0.8y = 0.0004
    Then,y = 0.0004 / 0.8
    = 0.004 / 8
    = .0005


  1. 0.9 x 0.008=?
    1. 0.072
    2. 0.0072
    3. 0.00072
    4. .72

  1. View Hint View Answer Discuss in Forum

    ∵ 9 x 8=72
    ∴ 0.09 x 0.008 = 0.00072 (Five place of decimal )

    Correct Option: C

    ∵ 9 x 8=72
    ∴ 0.09 x 0.008 = 0.00072 (Five place of decimal )



  1. ? % of 10.8 =32.4
    1. 3
    2. 30
    3. 300
    4. 0.3

  1. View Hint View Answer Discuss in Forum

    Let k % of 10.8=32.4
    ⇒ (k x 10.8) / 100 = 32.4

    Correct Option: C

    Let k % of 10.8=32.4
    ⇒ (k x 10.8) / 100 = 32.4
    ⇒ k = (32.4 x 100 )/10.8
    = 300


  1. ? / .0025 = 800
    1. .2
    2. .02
    3. 2000
    4. 2

  1. View Hint View Answer Discuss in Forum

    Let k / .0025=800
    Then, k = 800 x .0025

    Correct Option: D

    Let k / .0025=800
    Then, k = 800 x .0025
    = ( 800 x 25 ) / 10000
    = 2



  1. 0.001 / ? = 0.01
    1. 10
    2. .1
    3. .01
    4. .001

  1. View Hint View Answer Discuss in Forum

    Let 0.001 / x = 0.01
    Then , x = 0.001 / 0.01

    Correct Option: B

    Let 0.001 / x = 0.01
    Then , x = 0.001 / 0.01
    = 0.001 / 0.010
    = 1 / 10
    = 0.1