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Home Aptitude Square Root and Cube Root Comments

  • Question
  • The length of diagonal of a square is 8 cm. The length of the side of the square is?


  • Options
  • A. 2 cm
  • B. 2.8 cm
  • C. 1.414 cm
  • D. 5.64 cm

  • Correct Answer
  • 5.64 cm 

    Explanation

    a2 + a2 = (8)2
    ? 2a2 = 64
    ? a2 = 32
    ? a = ?32 = 4?2
    = 4 x 1.41
    = 5.64 cm


  • Square Root and Cube Root problems


    Search Results


    • 1. 
      The least number by which 176 be multiplied to make the result a perfect square is?

    • Options
    • A. 8
    • B. 9
    • C. 10
    • D. 11
    • Discuss
    • 2. 
      The least number by which 216 must be divided to make the result a perfect square is?

    • Options
    • A. 3
    • B. 4
    • C. 6
    • D. 9
    • Discuss
    • 3. 
      If a = (? 5 + 1) / (? 5 - 1) and b = (? 5 - 1) / ( ? 5 + 1) then the value of (a 2 + ab + b 2) / (a 2 - ab + b 2) is?

    • Options
    • A. 3/4
    • B. 4/3
    • C. 3/5
    • D. 5/3
    • Discuss
    • 4. 
      (? 5 - ? 3)/ (? 5 + ? 3) is equal to?

    • Options
    • A. 4 + ?15
    • B. 4 - ?15
    • C. 1/2
    • D. 1
    • Discuss
    • 5. 
      The least perfect square number divisible by 3, 4, 5, 6, 8 is?

    • Options
    • A. 900
    • B. 1200
    • C. 2500
    • D. 3600
    • Discuss
    • 6. 
      A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 22.09, the number of members in the group is?

    • Options
    • A. 37
    • B. 47
    • C. 107
    • D. 43
    • Discuss
    • 7. 
      The square root of (1/4) x (1/49) ÷ (25/121) is

    • Options
    • A. 11/5
    • B. 11/70
    • C. 7/11
    • D. 11/7
    • Discuss
    • 8. 
      A certain number of people agree to subscribe as many rupees each as a there are subscribers. The whole subscription is 2582449 rupees. Find the number of subscribers.

    • Options
    • A. 1607
    • B. 1291
    • C. 1503
    • D. 1603
    • Discuss
    • 9. 
      Find the least number by which 175760 be devided to make it a perfect cube.

    • Options
    • A. 10
    • B. 20
    • C. 100
    • D. 5
    • Discuss
    • 10. 
      The student of class XI of a school donated 4356 Rupees in all, for Prime Minister's National Relief Fund. Each student donated as many rupees as the number of students in the class. Find the number of students in the class.

    • Options
    • A. 65
    • B. 60
    • C. 66
    • D. 70
    • Discuss


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