# Arithmetic - math word problems

1. Coke From one ton of coal is produced 772 kg of coke for iron production. How many wagons of coal by 13 tonnes per day is needed for the blast furnace, which has a daily consumption of 1020 tons of coke?
2. Ray Light ray loses 1/19 of brightness passing through glass plate. What is the brightness of the ray after passing through 7 identical plates?
3. Tank In the middle of a cylindrical tank with a bottom diameter 251 cm is standing rod which is 13 cm above the water surface. If we bank rod its end reach surface of the water just by the tank wall. How deep is the tank?
4. Height UT How long is height in the equilateral triangle with a side b = 43?
5. Beer Which beer is better to drink: small beer (0.3 L) for 0.67 € or large (0.5 L) for 1.81 €?
6. Math test In class 6.A are 26 students and the teacher had managed to give tests to 13 students. 13 testes he gave in 6.5 min. How many pupils still haven't test? How long will it take techer to give tests to 43 students?
7. Milimeters How many millimeters is 1/4 meters? How much and how many times is 72.1 greater than 0.00721?
9. Hexagon Draw a regular hexagon inscribed in a circle with radius r=8 cm. What is its perimeter?
10. Numbers Find number on thenumber line that has same distance from this numbers:
11. Saw Imagine that the saw blade with diameter 40 cm has one tooth colored with a different color. How long is path describing by the tip of the tooth after 15 minutes, if the blade is rotated 13365 times?
12. Square Rectangular square has side lengths 183 and 244 meters. How many meters will measure the path that leads straight diagonally from one corner to the other?
13. Triangle Triangle KLM is given by plane coordinates of vertices: K[11, -10] L[10, 12] M[1, 3]. Calculate its area and its interior angles.
14. Divisibility Determine the smallest integer which divided 11 gives remainder 4 when divided 15 gives remainder 10 and when divided by 19 gives remainder 16.
15. Computer A line of print on a computer contains 64 characters (letters, spacers or other chars). Find how many characters there are in 7 lines.
16. Reciprocal For given real numbers, calculate reciprocal number.
17. Cylinder The cylinder surface is 922 dm2, its height is equal to the radius of the base. Calculate height of this cylinder.
18. Life Calculate how many years has man lived for 12248 days?
19. Rhombus Find the length of the other diagonal and area of rhombus. The perimeter of a rhombus is 40 cm and one of the diagonals is of length 10 cm.
20. Plums In the bowl are plums. How many would be there if we can divide it equally among 8, 10 and 11 children?

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