Unit conversion - examples

  1. Average speed
    bus27_4 When the bus stops at bus stops driving average speed is 45 km/h. If it did not stop it drive at speed 54 km/h. How many minutes of every hour it spend at stops?
  2. Ice and water
    ice_playground We want to cover rectangular rink with dimensions of 55 m and 25 m with 4cm thick layer of ice. How many liters of water we need if after freezing water increases its volume by 10%?
  3. Holidays
    holidays Calculate how many hours take holidays, if take 1 weeks.
  4. Weeks
    calendar 55 weeks is equal to how many days?
  5. Theatre
    divadlo Theatrical performance started at 17:25 and ended at 18:25. How many minutes long?
  6. Milimeters
    meter How many millimeters is 1/100 meters?
  7. Hours
    watch_1 How many hours is 5 days?
  8. Clock
    1clock How many hours is 12 days?
  9. Civil protection
    potapac Students on civil protection exercise went 5800 m long trip. How many kilometers is it approximately?
  10. Beer
    piva After three 10° beers consumed in a short time there are 7.4 g of alcohol in 5 kg adult human blood. How much is it per mille?
  11. Density - simple example
    mercury Material of density of 1278 kg/m3 occupies a container volume of 80 cm3. What is its mass?
  12. Time
    time Write time in minutes rounded to one decimal place: 1 h 42 m 22 s.
  13. Area of trapezoid
    trapezoid The trapezoid bases are and 8 dm and 9 cm. His height is 2 cm. Calculate the area of trapezoid.
  14. Pool
    swimming-pool The swimming pool is 6 m wide and 14 m long and 185 cm deep. How many hectoliters of water is in it, if the water is 9 cm below its upper edge.
  15. River
    kongo_river Calculate how many promiles river Hudson average falls, if on section long 921 km flowing water from 1224 m AMSL to 154 m AMSL.
  16. Clock
    hodiny How many times a day hands on a clock overlap?
  17. Potatoes
    potatoes Could 388 tons of potatoes (ρ = 799 kg/m³) fits in a warehouse with a volume of 675 m³ ?
  18. Windows
    wall_w_windows Calculate the area of masonry to build wall with dimensions of 19 m × 4 m with 5 windows of size 50 cm × 50 cm.
  19. Rectangles
    strihanie Calculate how many squares/rectangles of size 2×2 cm can be cut from a sheet of paper of 0.8 dm × 8 cm?
  20. Server
    p_pro Calculate how many average minutes a year is the web server is unavailable, the availability is 99.99%.

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