# Percentages + cube - math problems

#### Number of problems found: 29

• Metal sheet How much m ^ 2 of sheet metal is needed to beat a box in the shape of a cube with an edge length of 50 cm, if we add 20% on the folds of the lid and walls?
• Prism Right-angled prism, whose base is a right triangle with leg a = 3 cm and hypotenuse c = 13 cm, has the same volume as a cube with an edge length of 3 dm. a) Find the height of the prism b) Calculate the surface of the prism c) What percentage of the cube'
• Lathe From the cube of edge, 37 cm was a lathed maximum cylinder. What percentage of the cube is left as waste after lathed?
• Cube zoom How many percents do we increase the volume and surface of the cube if we magnify its edge by 38 %?
• Cone and cube About what percentage hase cone with base radius r larger volume than same high cube with square base with edge length r?
• 3y inflation Price of the roll rise in the first year by 9%, the second year fell by 5% and in the third year increased by 3%. Calculate the average annual increase in price of the roll.
• Cone in cube The cube is inscribed cone. Determine the ratio of the volume of cone and cube. The ratio express as a decimal number and as percentage.
• Cube wall The surface of the first cube wall is 64 m2. The second cube area is 40% of the surface of the first cube. Determine the length of the edge of the second cube (x).
• Cube in ball Cube is inscribed into the sphere of radius 181 dm. How many percent is the volume of cube of the volume of the sphere?

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