Percentage and rectangle

About what percentage increases perimeter and area of a rectangle if both the sides 12 cm and 10 cm long we increase by 20%?

Result

p1 =  20 %
p2 =  44 %

Solution:  Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! Next similar examples:

1. Hop-garden The length of the rectangular hop garden Mr. Smith increased by 25% and its width by 30%. What is the percentage change in area of hop garden?
2. Content area and percents Determine what percentage is smaller cube surface, when the surface area of the wall decreases by 25%.
3. 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?
4. Parcel Both dimensions of the rectangular parcel were increased by 26%. By how many % has increased its acreage?
5. Window Peter demolish box hole in the wall for window frame 147×51 cm. When they came masters fitted frame and window will be found that glass is 13.3 cm from the hole in each direction. Calculate how much percent less light enters the window than hole?
6. Enlarged rectangle The rectangle with dimensions of 8 cm and 12 cm is enlarged in a ratio of 5:4. What are the circumference and the area of the enlarged rectangle?
7. Surveyor Calculate the area of ​​what may vary rectangular, if it focused by surveyor and found the dimensions 18 x 15 m while in each of the four joint points can be position deviation 25 cm?
8. Percentages 52 is what percent of 93? Calculate how many percent will increase the length of an HTML document, if any ASCII character unnecessarily encoded as hexadecimal HTML entity composed of six characters (ampersand, grid #, x, two hex digits and the semicolon). Ie. space as: &#x20;
10. Profit gain If 5% more is gained by selling an article for Rs. 350 than by selling it for Rs. 340, the cost of the article is:
11. The ball The ball was discounted by 10 percent and then again by 30 percent. How many percent of the original price is now?
12. Highway repair The highway repair was planned for 15 days. However, it was reduced by 30%. How many days did the repair of the highway last?
13. Persons Persons surveyed:100 with result: Volleyball=15% Baseball=9% Sepak Takraw=8% Pingpong=8% Basketball=60% Find the average how many like Basketball and Volleyball. Please show your solution.
14. Percents How many percents is 900 greater than the number 750?
15. Spending If spends 25% of my net pay of \$922.28 on entertainment. How much money is that?
16. The sales The sales tax rate is 4.447​% for the city and 4​% for the state. Find the total amount paid for 2 boxes of chocolates at ​\$17.96 each.
17. Percent Calculate how many % is the number 26.25 less than the number 105.