Arithmetic - math word problems

  1. Gingerbread
    honey_cakes John decorated 29 gingerbread and Annie 8 more. How many gingerbread decorated Annie?
  2. Annual income
    income The annual incomes (in thousands of $) of fifteen families is: 60, 80, 90, 96, 120, 150, 200, 360, 480, 520, 1060, 1200, 1450, 2500, 7200 Calculate harmonic and geometric mean.
  3. Pagans
    circles2_3 Elena cut out same circle-shaped pagans and put them on a rectangular sheet so that the neighboring pagans were touching each other and the pagans were touching the walls of the sheet on the edges. Each pagans occupied 28.26 cm2 of the bottom of the sheet.
  4. Mr. John
    jabka Mr. John wants to buy winter apples Spartan. There are two ways to buy: 1) buy apples at the marketplace, where 1 kg costs 15 CZK. 2) Bring the car to the agricultural farm, where the apples are sold after 9 CZK per kilogram. However, he must pay CZK 150.
  5. Right triangle
    right_triangle Right triangle legs has lengths 630 mm and 411 dm. Calculate the area of this triangle.
  6. Three Titanics
    Titanic Three steamers sailed from the same port on the same day. The first came back on the third day, fourth 4th day and the third returned sixth day. How many days after leaving the steamers met again in the harbor?
  7. Roman numerals +
    rome-italy Add up the number writtens in Roman numerals. Write the results as a decimal number.
  8. Digits of age
    babka The product of the digits of Andrew age as 6 years ago and not equal to 0. Andrew age is also the smallest possible age with this two conditions. After how many years will be the product of the digits of Andrew age again the same as today?
  9. Cash back
    ceskamena After a trip 24 students have left more than 650 but less than 690 CZK (Kc). How much each student receives return when the amount is divisible by the number of pupils?
  10. 100 %
    elephant How much is 100%, if 17 % is 1169?
  11. Equation
    cubic How many real roots has equation ? ?
  12. Athletes
    spartakiada_2 Athletes standing in rows of eight. Ivan estimated that athletes are more than 120. Peter claimed that there are fewer than 130. Both are right. How many are athletes?
  13. Street
    street_lamps Straight streets is long x = 1425 meters. At the beginning and at the end of the street are poles. The poles are spaced 25 m. How many poles are on the street?
  14. Tram stop
    tram_historic At the tram stop met tram No. 4 and no. 5 at 10 AM. Tram no. 4 runs every 5 minutes, tram No. 5 at an interval of 7 minutes. How many times will meet until 12 o'clock?
  15. Harvester
    kombajn_1 Harvester has cutting width 4 m and harvested grain in the field, which is 87 meters wide. Harvester moves along the length of the field for six minutes, going back (without cutting) it takes half the time. Each turn at the end field take one minute. How m
  16. Null points
    absolute value Calculate the roots of the equation: ?
  17. Doctors
    cvach1 In the city operates 196 doctors. The city has 134456 citizens. How many citizens are per one doctor?
  18. Shoes
    obuv Joseph had one pair of sandals, one pair of hiking shoes, 1 pair of botas, one pair of church shoes. How many pieces of shoes had together?
  19. Reduce of the volume
    cubes Calculate how many % reduce the volume of the cube is we reduced length of each edge by 10%.
  20. Cake fractions
    dort Thomas ate 1/3 of cake, Bohouš of the rest of the cake ate 2/5. What fraction of cake left over for others?

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