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Home Aptitude Volume and Surface Area See What Others Are Saying!
  • Question
  • If the radius of a sphere is increased by 100%, by what per cent does its volume increase?


  • Options
  • A. 300%
  • B. 900%
  • C. 500%
  • D. 700%

  • Correct Answer
  • 700% 

    Explanation

    Here, n = 100%
    According to the formula
    Percentage increase in volume = [(1 + n/100)3 - 1] x 100%
    = [(1 + 100/100)3 - 1] x 100%
    = [8 - 1] x 100% = 700%


  • More questions

    • 1. In how many different ways can the letters of the word 'RITUAL' be arranged?

    • Options
    • A. 720
    • B. 5040
    • C. 360
    • D. 180
    • Discuss
    • 2. What least number must be subtracted from 210, so that the sum is completely divisible by 11?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 1
    • Discuss
    • 3. What is the fourth proportional to 72, 168 and 150?

    • Options
    • A. 450
    • B. 300
    • C. 350
    • D. 400
    • Discuss
    • 4. The value of (sec245 - cot245) - (sin230 + sin260) is

    • Options
    • A. 1
    • B. 2?3
    • C. 0
    • D. 1/?2
    • Discuss
    • 5. Point P (8 , 5) is the midpoint of segment AB. Co-ordinates of A are (5, y) and B are (x, -3). What is the value of x?

    • Options
    • A. -11
    • B. 11
    • C. 7
    • D. -7
    • Discuss
    • 6. The sum of a non-zero number and 9 times its reciprocal is 10. What is the number?

    • Options
    • A. 10
    • B. 11
    • C. 9
    • D. 90
    • Discuss
    • 7. If 4x = ?5+ 2, then the value of x - 1/16x is

    • Options
    • A. 1
    • B. -1
    • C. 4
    • D. 2?5
    • Discuss
    • 8. What is the remainder when 2468 is divided by 37?

    • Options
    • A. 26
    • B. 36
    • C. 18
    • D. 14
    • Discuss
    • 9. How many ways can 10 letters be posted in 5 post boxes, if each of the post boxes can take more than 10 letters ?

    • Options
    • A. 5^10
    • B. 10^5
    • C. 5P5
    • D. 5C5
    • Discuss
    • 10. Convert binary 1101111 to decimal.

    • Options
    • A. 111
    • B. 101
    • C. 110
    • D. 100
    • Discuss


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