Square root and cube root


  1. 288 / √128









  1. View Hint View Answer Discuss in Forum

    288 / √128 = √9/4

    Correct Option: C

    288 / √128 = √9/4
    = 3/2


  1. 10 x √15 ?









  1. View Hint View Answer Discuss in Forum

    10 x √15
    = √10 x 15
    = √150
    = √25 x 6
    = √25 x √6

    Correct Option: A

    10 x √15
    = √10 x 15
    = √150
    = √25 x 6
    = √25 x √6
    = 5√6



  1. ? / 200 = 0.02 ?









  1. View Hint View Answer Discuss in Forum

    Let √x / 200 = 0.02
    Then, √x = 200 x 0.02 = 4.

    Correct Option: C

    Let √x / 200 = 0.02
    Then, √x = 200 x 0.02 = 4.
    So, x = 16


  1. 250 / √? = 10









  1. View Hint View Answer Discuss in Forum

    Let 250 / √x = 10.
    Then, √x= 250 / 10 = 25

    Correct Option: A

    Let 250 / √x = 10.
    Then √x= 250 / 10 = 25
    ∴ x = 625



  1. 4375 / √7 = ?









  1. View Hint View Answer Discuss in Forum

    4375 / √7 = √4375 / 7
    = √625

    Correct Option: C

    4375 / √7 = √4375 / 7
    = √625
    = 25