Percentages + square (second power, quadratic) - practice problems
Number of problems found: 198
- Circumference 5493
By what percentage will the area of a square decrease if its circumference decreases by 17 percent? - Square
If we increase the side of the square, increase its area of 91%. What is the percentage we increase the side of the square? - Specify 3808
Specify a number that is 61% less than 10². - One-fifth 80438
By what percent does the area of a square increase if its perimeter increases by one-fifth? - Area decrease
If the area of the square decreases by 19%, by how much percent does the side of the square decrease? - Cone and cube
About what percentage has cone with base radius r larger volume than a same high cube with square base with edge length r? - Unknown 3922
16% of the unknown number equals the square root of the number 25. Find this unknown number. - Suppose 12
Suppose in a physics test involving 30 students, and four scored 75%, eight scored 60%, twelve scored 50%, and six scored 30%. Calculate the mean of the group and the standard deviation. - Colour
The square is divided into 100 squares. If you needed to color 49%, how many squares would you color? - Square sides
If the square side increases by 28%, the square circumference increases by 11.2 meters. Find the length of the original square side. - Pipeline
How much percent has changed (reduced) the pipe cross-section area if the circular shape changed to square with the same perimeter? - Determine 3769
12% of x is 58 more than (6²) +5. Determine x. - Isosceles triangle
Find the area of an isosceles triangle whose leg is twice the base, b=1 - Percentage increase
What is the annual percentage increase in the city when the population has tripled in 20 years? - Screens
The area of a 25-inch TV screen is 300 inch² the area of a 40-inch TV screen is 768 inch². The area of the smaller screen is what percent of the area of the larger screen? - Cutting square
We cut the circle with the highest possible diameter from a square with a side of 30 cm. How many percents of the square area is this circle? - Percentage of waste
In a square plate with a side 75 cm, we cut four same circles. Calculate the percentage of waste. - Equilateral triangle
Calculate the side of an equilateral triangle if its area is 886 mm². - Reduced 81099
A square has a side length of 25 cm. How big is its area if the side is reduced by 25%? - Diameter 6289
A circle with the largest possible diameter is cut from a square with a side length of 35 cm. What percent of the square area is waste?
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