Unit conversion - examples

  1. Failure
    car_12 Drivers of passenger cars have calculated that at a speed of 60 km/h arrives at destination within 40 minutes. After 20 km refrain five minutes due a technical failure. How fast must go the rest of the way to the finish came at the scheduled time?
  2. Prism
    hranol4sreg_1 Calculate the height of the prism having a surface area 448.88 dm² wherein the base is square with a side of 6.2 dm. What will be its volume in hectoliters?
  3. Midpoints
    rovnobeznik_4 Triangle ABC with sides a = 5 cm, b = 3 cm, c = 40mm has a midpoint of K, L, M. How many centimeters is long perimeter of parallelogram KBLM?
  4. Ruler
    pravitko_1 How far from Peter stands 2m hight John? Petr is looking to John over ruler that keeps at arm's distant 60 cm from the eye and on the ruler John measured the height of 15 mm.
  5. Tree shadow
    tree2_1 Tree perpendicular to the horizontal surface has a shadow 8.32 meters long. At the same time meter rod perpendicular to the horizontal surface has shadow 64 cm long. How tall is tree?
  6. Holidays
    holidays Calculate how many hours take holidays, if take 1 weeks.
  7. Weeks
    calendar 55 weeks is equal to how many days?
  8. Theatre
    divadlo Theatrical performance started at 17:25 and ended at 18:25. How many minutes long?
  9. Milimeters
    meter How many millimeters is 1/100 meters?
  10. Hours
    watch_1 How many hours is 5 days?
  11. Clock
    1clock How many hours is 12 days?
  12. Civil protection
    potapac Students on civil protection exercise went 5800 m long trip. How many kilometers is it approximately?
  13. 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?
  14. Time
    time Write time in minutes rounded to one decimal place: 1 h 42 m 22 s.
  15. Density - simple example
    mercury Material of density of 1278 kg/m3 occupies a container volume of 80 cm3. What is its mass?
  16. Area of trapezoid
    trapezoid The trapezoid bases are and 8 dm and 9 cm. His height is 2 cm. Calculate the area of trapezoid.
  17. 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.
  18. 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.
  19. Clock
    hodiny How many times a day hands on a clock overlap?
  20. Potatoes
    potatoes Could 388 tons of potatoes (ρ = 799 kg/m³) fits in a warehouse with a volume of 675 m³ ?

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