Percentages - practice for 14 year olds - page 14 of 61
Number of problems found: 1210
- Discount 67354
Skates have fallen by 36% after the winter season on sale. Their price after the discount was 48 euros. What was the original price? - Extraordinary 67044
The employee received an extraordinary reward of 320 euros, 8% of his monthly salary in September. What is his monthly salary? - Cancer in woman population
In a particular population of women, 40% have had breast cancer, 20% are smokers, and 13% are smokers and have had breast cancer. If a woman is selected at random from the population, what is the probability that she has breast cancer, smokes, or both? - Percentage 66714
They cut a full circle from a square plate with a side of 200 mm. What percentage is waste?
- Eighth-graders 66654
The number of eighth graders in primary school is 80 percent of the number of ninth graders. There are 54 eighths and ninths. How many ninth-graders go to this school? - Probability 66644
Oskar observes the arrivals and departures of cars in the parking lot. At one point, there were 99 cars in the parking lot: 25 red, 17 white, and the rest were black. What is the percentage probability that a black car was leaving the parking lot at a giv - Deposited 66604
The parents deposited Vierka's daughter in an account of 2,000 euros at an annual interest rate of 2%. How many euros will be in the account in a year if the bank adds interest? - Percentage 66564
There are 584 students at the school, 421 of them boys. What percentage of students are girls? - Interest 66484
The bank provides loans with an interest rate of 5% pa. How much interest will you pay if you borrow 5,000 euros for: A) 1 year B) 1/2 year C) 1/4 year D) 5 years?
- Deposited 66314
Mr. Adam and Mr. Milan each deposited 20,000 euros in their bank. After the first year, Mr. Adam added 600 euros and Mr. Milan 550 euros. What was the interest rate of each bank? - Interest 66304
How big would the Novak family take out a housing loan if they paid an interest of 5500 euros after the first year and the interest rate of this loan was 5.5% p. and.? - Flowing 66174
How long in an hour will a 30m, 15m, and 2m pool be filled with water flowing at 900l / min if it is 90% full? - Original 66004
They reduced the shoes by CZK 132 to 85% of the original price. How much did they cost before the discount? - Discount 65854
The TV fell first by 20%, then by 10%. How much did it cost after the second discount if: A) before the first discount cost 450eur? B) after the first discount, cost 450eur?
- Percentage 65844
Mr. Josef sold home-grown potatoes at 79 cents per kilogram. When he had the last 5 kg, he told the customer: collect them all for 3 euros! By what percentage did Mr. Josef reduce the potatoes? - Reduction 65814
The Shop first reduced the tablet price by 10%, and later Shop reduced the new price by 20%. After the tablet cost € 720 to double the reduction, what was its original price? - Numbers 65734
There are 100 tickets in a pocket with the numbers 1 to 100. What is the probability that we will randomly draw a ticket with a number starting with the number 5? - Annual interest
How many euros did Mr. Slovak deposit in the bank if, after a year, at an annual interest rate of 3.8%, he had 2,076 euros in his account? - One half of one percent
One-half of 1% converted to a decimal is?
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