Grade - math word problems - page 421 of 968
Number of problems found: 19345
- House increase percentage
On the pages of the Czech Statistical Office, we can learn that in 1869, Prague and its suburbs had a total of 10,947 houses; in 1900, there were 18,838 houses. What was the annual percentage "increase" of houses in Prague between 1869 and 1900, assuming - Forest wood growth
The amount of wood in a specific forest area is estimated at 2,106 m3, and the annual wood growth is 2.1%. What will be the situation after 20 years? - Wire diameter reduction
With a single pull, the wire diameter is reduced by 10%. How many draws are required to minimize the wire diameter from 5 mm to less than half? - Inner angles
The magnitude of the internal angle at the central vertex C of the isosceles triangle ABC is 72°. The line p, parallel to the base of this triangle, divides the triangle into a trapezoid and a smaller triangle. How big are the inner angles of the trapezoi - Nina skiing savings
Nina is going skiing. She bought trousers with a quarter of the saved money, spent a third of the amount on a backpack, and a friend sold her skis for the remaining €100. How much € did Nina save? - Original price
Find the original price of a car if it was firstly increased by 4% and then reduced by 2%. It now costs CZK 326,144. - Trip cost
In September, the trip cost CZK 12,000. How many crowns did the trip cost in June of the same year, when they have since reduced the price by a quarter and another CZK 1,200? - Truck kinetic energy
A truck has a mass of 4.5 tonnes and is moving at a constant speed of 72 km/h. What is its kinetic energy? - Box wrapping cost
How much will we pay for wrapping 5 boxes in the shape of a cube with a side length of 80 cm if we count on a margin of 35% for folds? The price for 1 square meter of paper is €2.55. You can only buy whole square meters. - Work time
The carpenter did the work in 3 2/5 hours. What part of the work did he do in an hour? - Hard cone problem
The cone's surface is 200 cm², and its height is 7 centimeters. Calculate the volume of this cone. - Six terms GP
Find the sum of the six terms of the finite geometric sequence 96, -48, 24, -12 - Calculate 4S pyramid
Calculate the surface area and volume of a regular 4-sided pyramid with a base edge of a = 12 cm and a height of v = 5 cm. - Calculate pyramid
Calculate the volume of the pyramid, whose base edge a = 8 cm and the sidewall makes an angle α = 60° with the square base. - Special body
Above each wall of a cube with an edge a = 30 cm, we construct a regular quadrilateral pyramid with a height of 15 cm. Find the volume of the resulting body. - The cone - S,V Calculate the volume and surface area of the cone if its radius r = 6 cm and side s = 10 cm.
- Bracelet
The silver bracelet weighs 62 g and contains 59 g of silver. What is the purity of the bracelet? - Cone volume surface
A right triangle with perpendiculars a = 3 cm and b = 4 cm rotates around a longer perpendicular. Calculate the volume and surface area of the resulting cone. - Flower number puzzle
The petals of each always have something in common. Can you figure out what number will be in the middle of the flower so that when subtracting and adding, the numbers come from the flowers? The flowers are numbered 50, 30, 20, 40, and 10. - Silver bracelet
The silver bracelet, which has a purity of 925 per mille, contains 25.9 g of silver. What is the weight of the bracelet?
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