Arithmetic - math word problems

  1. Tenth member
    10 Calculate the tenth member of geometric sequence when given: a1=1/2 and q=2
  2. Volume from surface area
    cube_3 What is the volume of the cube whose surface area is 96 cm2?
  3. The city 2
    kingkong Today lives 167000 citizens in city. How many citizens can we expect in 11 years if their annual increase is 1%?
  4. For thinkings
    glass_cubes The glass cube dive into the aquarium, which has a length of 25 cm, width 20 cm and height of 30 cm. Aquarium water rises by 2 cm. a) What is the volume of a cube? b) How many centimeters measure its edge?
  5. Saving per cents
    penize.JPG The first day I save 1 cent and every next day cent more. How many I saved per year (365 days)?
  6. Hollow sphere
    sphere_2 Steel hollow sphere floats on the water plunged into half its volume. Determine the outer radius of the sphere and wall thickness, if you know that the weight of the sphere is 0.5 kg and density of steel is 7850 kg/m3
  7. 3 years
    ekonomicky-rast The company has increased the number of employees. In year 2005 compared to 2004 13% more, in 2006 18% more against the previous year, in year 2007 20% more compared to 2006. How many % increase in the number of employees in 3 years?
  8. Five-digit
    cards Find all five-digit numbers that can be created from numbers 12345 so that the numbers are not repeated and then numbers with repeated digits. Give the calculation.
  9. Tailor
    krejci Tailor has an estimated 11 meters of 80 cm wide fabric. He will shape wholly 7 rectangles measuring 80 x 150 cm and nothing fabric does not remain. How many fabric he have?
  10. Chestnuts
    gastany_1 Mary harvested 45 chestnuts. Christian harvested 56 chestnuts more. How many chestnuts gathered together?
  11. Chord 3
    chords What is the radius of the circle where the chord is 2/3 of the radius from the center and has a length of 10 cm?
  12. Mr. Vojta
    penize Mr. Vojta put in the bank 35000 Kč.After a year bank him credited with interest rate of 2% of the deposit amount. How then will Mr. Vojta in the bank?
  13. Math classification
    prezident In 3A class are 27 students. One-third got a B in math and the rest got A. How many students received a B in math?
  14. Free postage
    obchod Dad found out that when ordering goods over the Internet and will pay more than 60 euros do not pay a fee for postal delivery. He chose goods for 10, 20 and 15 euros. How many euros do we have pay for goods for free postage?
  15. Land cost
    tatrka The land is worth 33295 CZK. 1st owner has 5/15, 2nd owner has 4/15, 3rd owner has 1/5 4th owner has 1/5. How much CZK each of them will receive?
  16. Cube basics
    krychle_2 How long is the edge length of a cube with volume 15 m3?
  17. Classroom 3
    kids_1 How many children are in the classroom, where 13 children are higher than Lenka and 9 children lower than Lenka?
  18. Forest ranger
    srny Forest ranger watching from the hide deers. At one time point he can see 6 deers. How many maximum deers can be see by 3 rangers at same time?
  19. BMI index
    man_BMI Calculate BMI (body mass index, an index indicating obesity, overweight, normal weight, underweight) man weighing m = 71 kg and height h = 170 cm. Index is calculated according to equation (formula): ? With BMI index is possible to compare people of dif
  20. Right trapezoid
    lich_right The right trapezoid has bases 3.2 cm and 62 mm long. The shorter leg has a length 0.25 dm. Calculate the lengths of the diagonals and the second leg.

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