Number of problems found: 866
Annual rainfall in our country is an average of 797 mm. How many m3 of water rains on average per hectare?
The average of 5 numbers is 108. What is its sum?
What is the probability that a random word composed of chars E, Y, G, E, R, O, M, T will be the GEOMETRY?
- Education for free
The Slovakia circulates a lot of myths, particularly ideas about what must be free. For example - education should be free - children of poor parents should know at least read and write. Calculate how much a student would have to pay per hour of teaching,
- Gear wheels
Two gear wheels, which fit together, have the number of teeth z1=58 and z2=149. Calculate the speed of the first wheel, if the second wheel rotates 1232 revolutions per minute.
How many rectangles with area 8713 cm2 whose sides are natural numbers are?
- Right triangle
Right triangle legs has lengths 630 mm and 411 dm. Calculate the area of this triangle.
What power has a pump output to move 4853 hl of water to a height of 31 m for 8 hours?
- DIY press
Under socialism regime was in some socialist countries to own a typewriter requires special permission. That has hindered the spread of DIY literature (manually transcribed through carbon copy paper for typewriters). Calculate how many typewriters today c
Calculate the integer number which, divided by 34 gives 10 and the rest 25.
How many different flags can be made from colors red, yellow, blue, green, white to consist of three different colors?
Neil has 5-times chestnuts less than Adrian. Together they have 894 chestnuts. How many chestnuts has Neil and Adrian?
- Air mass
What is the weight of the air in a classroom with dimensions 10 m × 10 m × 2.7 m ? The air density is 1.293 kg/m3.
Calculate how many hours take holidays, if take 5 weeks.
10 trees in 5 lines grows in the orchard. How many trees are in the orchard?
- The cyclist
The cyclist went from village to town. The first half of the journey went at 20 km/h. The second half of the journey, which mostly fell, went at 39 km/h. All journey took 88 minutes. Calculate the distance from the village to the town.
Calculate the 4.6 ‰ of 199.
- Railways - golden parachutes
As often happens in Slovakia habit, the state's financial institution which takes from poverty and gorilas give. A hardworking punishing taxes. Let's look at a short work of director Railway Company ZSSK - Mgr . P. K. : 18 months 'work' as director reduct
- Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
The class is 25 students. How many ways can choose 5 students to examination?