Percentages + cube - practice problems
Number of problems found: 47
- Percentage 67564
A sphere G is inscribed in the cube K with the length a. A cube K1 is inscribed in the sphere G. What percentage of the volume of the cube K is made up of the volume of the cube K1?
- Considering 67324
Susan has an old stool - a cube with an edge length of 80 cm. She wants to sew a new cover for her. How many square meters does the fabric consume, considering the addition of 15% for stitching and folds?
- Original 63974
If we reduce the length of the cube edge by 30%, this cube has a reduced surface area by 1176 cm². Specify the edge length and volume of the original cube.
- Percentage 61594
Calculate what percentage of the cube volume represents the volume of the cylinder inscribed in the cube. The cylinder's bases are circles inscribed in two opposite walls of the cube with an edge a = 14 cm.
- Increase 46473
He enlarges the side of the 8 cm long cube by 20%. How much will its volume increase compare to the original cube?
- Determine 46401
The volume of the sphere is 20% larger than the volume of the cone. Find its surface if the volume of the cone is 320 cm³.
- The golf
The golf ball with a diameter of 43 mm is packed in a cube-shaped box. What percentage of the box volume is made up of a ball?
- Percentage 39373
Inside the 10 cm cube, a sphere is placed so that it touches all the cube's walls. What percentage of the volume of a cube makes up the volume of a sphere?
- Identical 35961
Nine identical spheres are stacked in the cube to fill the volume of the cube as much as possible. What part of the volume will the cube fill?
- Calculate 26433
Calculate how much cm² of paper needs to be bought to make a 60 mm cube if you need to add an extra 12% to the folds.
- Percentage 24931
There is a cylinder with the largest possible volume in the cube with an edge of 6 m. What percentage of the volume of a cube has the volume of a cylinder?
- Cylinder in cube
Into a paper box in the shape of a cube with an edge of 10 cm is placed a can in the shape of a cylinder with a height of 10 cm and touching all the walls of the cube. What % of the volume of the cube can take up?
- Cube in sphere
The cube is inscribed in a sphere with a radius r = 6 cm. What percentage is the volume of the cube from the volume of the ball?
- Cube-shaped 20193
The cube-shaped aquarium with an edge length of 40 cm is filled with 70% water. How many liters of water are in the aquarium, and how high does the water reach?
- Increases 14471
How many percent will it increase a) surface b) cube volume if the edge of the cube increases by 25%?
How much m² of fabric do we need to sew a 50cm-shaped cube-shaped seat if 10% of the material we add to the folds?
- Profit growth
The profit of a company increased by 25% during the year 1992, increased by 40% during the year 1993, decreased by 20% in 1994 and increased by 10% during the year 1995. Find the average growth in the profit level over the four years periods?
- Red cubes
There are 15 white and several red cubes in the box. The probability of accidentally pulling out a white cube is 20%. How many red cubes are in the box?
- The cube
The cube has an edge of 12 dm. The second cube has an edge exactly 20% longer. How many % is more water in the second cube than in the first cube, if the first cube is full to 3/4 and the second to 3/8?
- Pyramid cut
We cut the regular square pyramid with a parallel plane to the two parts (see figure). The volume of the smaller pyramid is 20% of the volume of the original one. The bottom of the base of the smaller pyramid has an area of 10 cm². Find the area of the or
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