Power - examples

  1. One half
    one_half One half of ? is: ?
  2. Cube diagonal
    cube_diagonal Determine length of the cube diagonal with edge 55 dm.
  3. Z9-I-4
    numbers_30 Kate thought a five-digit integer. She wrote the sum of this number and its half at the first line to the workbook. On the second line wrote a total of this number and its one fifth. On the third row she wrote a sum of this number and its one nines. Fi
  4. Compare II
    powers Which of the numbers 158, 815 is greater?
  5. Area codes
    us_codes How many 6 digit area codes are possible if the first number can't be zero?
  6. Circle chord
    circleChord What is the length d of the chord circle of diameter 58 mm, if distance from the center circle is 24 mm?
  7. Powers
    math_fun Is true for any number a,b,c,d equality:? ?
  8. Sale
    sale_percent If the product twice price cut by 20%, what percentage was price cut in total?
  9. Compare:
    nevim.JPG What is bigger? ?
  10. No. of divisors
    triangle_div How many different divisors has number ??
  11. Proof I
    ithinkiam When added to the product of two consecutive integers larger one, we get square larger one. Is this true or not?
  12. Subsets
    1venna_sets How many is subsets of set ??
  13. Machine
    machine Price of the new machine is € 56000. Every year is depreciated 16% of residual value. What will be the value of the machine after 5 years?
  14. Morse alphabet
    morse_code Calculate how many words of Morse code to create compiling commas and dots in the words of one to five characters.
  15. Volume from surface area
    cube_3 What is the volume of the cube whose surface area is 96 cm2?
  16. Motion problem
    dragway From Bratislavy to Martina go car at speed 83 km/h. From Martina to Bratislavy go another car at speed 62 km/h. How many minutes before the meeting will be cars 21 km away?
  17. Lottery
    loteria_1 The lottery is 41000 elk in which 7300 wins. What is the probability that the purchase of 17 elks won nothing?
  18. Is equal
    Shazam Is equal following terms? ?
  19. Wire
    cu_wire One pull of wire is reduced its diameter by 9%. What will be diameter of wire with diameter 9 mm over 8 pulls?
  20. Equation
    cubic How many real roots has equation ? ?

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