Multiplication - problems
Write time in minutes rounded to one decimal place: 1 h 42 m 22 s.
Determine the number of all positive integers less than 2937474 if each is divisible by 11, 23, 17. What is its sum?
How many times should be broken chocolate consisting of 5 × 6 pieces to get the 30 parts?
- Phone numbers
How many 9-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated?
- Morse alphabet
Calculate how many words of Morse code to create compiling commas and dots in the words of one to five characters.
- Efficiency of rail
With subsidies are business easy. Calculate how much must cost rail ticket (x) in today's ticket price € 13 and if the trains was not subsidized, if it is known that without subsidies would cost three times today's ticket prices. Calculate the value of.
Combination lock will open when the right choice of 5 numbers (from 1 to 12 inclusive) is selected. A. How many different lock combinations are possible? B. Is he combination lock named appropriately?
- Weight of air
What is the weight of air in the living room measuring width 8 m length 2 m and height 2.7 m? Air density is ρ = 1.2 kg/m3.
Grower harvested 190 kg of apples. Pears harvested 10 times less. a) How many kg pears harvested? b) How many apples and pears harvested? c) How many kg harvested pears less than apples?
- 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 r
Peter broke the window glass with size 110 cm and 90 cm. 1 square meter of glass costs 8 Euro. How much money is need to pay for a new glass?
- Football league
In the football league is 16 teams. How many different sequence of results may occur at the end of the competition?
- Land cost
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?
Expression (3a-7).(3a+7) is identical with: ?
- Expression 1
What is 7+8-(5×2)+5-4+(6×(5-3)+6)-(8+10)-7+6?
- Classroom 4
In a class of 36 pupils, 2/3 are girls. How much it is in a class girls and boys?
One brick is 2 kg and half a brick heavy. What is the weight of one brick?
- Motion problem
From Bratislavy to Martina go car at speed 83 km/h. From Martina to Bratislavy go another car at speed 62 km/h. How many minutes before the meeting will be cars 21 km away?
Annual rainfall in our country are an average of 854 mm. How many m3 of water rains on average per hectare?
What is the least common multiple of 28, 42, 22?