Percentages - practice for 14 year olds - page 11 of 61
Number of problems found: 1205
- Photographs 78034
The book was sold for 225 CZK and was sold out very quickly. The publishing house prepared a reprint and expanded the book with new photographs. The extended version of the book costs CZK 280. By what percentage is the new book more expensive? - A solution
A solution of salt and water has 15% salt by weight. From it, 30 kg evaporated, and the solution now contains 20% salt. Find the original quantity of the solution. - Erica’s
Erica’s bank account increased from $1,200.00 to $1,500.00. By what percent did the amount of money in her bank account increase? - Choose
Choose the three equivalent forms of 6.375. A. six and three eighths, 6.375%, fifty one eighths B. six and three seventy fifths, 6.375%, thirty seven sixths C. six and three seventy fifths, 637.5%, thirty seven sixths D. six and three eighths, 637.5%, fif - Electricity 77094
The smaller bakery had a long-term contract and purchased one MWh of gas for 36 euros in 2021. After the contract expired, it had to switch to the current spot price and pay up to 196 euros for one MWh. By what percentage did the price of electricity for - A vendor 3
A vendor borrowed PHP 150,000 from their cooperative. The rate of interest was 11.5% a year. How much interest does he pay to the bank at the end of one year? - Markup 2
A store manager paid $74 for an item and set the selling price at $102.86. What was the percent markup? - Non equivalent ints
Two n-digit integers are said to be equivalent if one is a permutation of the other. Find the number of 5-digit integers such no two are equivalent. If the digit 5,7,9 can appear at most one, how many non-equivalent five-digit integers are there? - Score on tests
On the first six tests in his Mathematics subject, his scores were 92, 82, 86, 93, 96, and 91. If he took the seventh test and raised the mean of his scores by exactly one point, what is his score on the 7th test? - The population
A city's population increased from 977,760 in 1995 to 1,396,714 in 2005. What is the percentage of increase? Round your answer to the nearest tenth of a percent. - School
There are 500 students in the school. 60% of them are boys, and the rest are girls. What is the percentage of girls? Also, find the total number of boys and girls in the school. - Isosceles triangle
Find the area of an isosceles triangle whose leg is twice the base, b=1 - Ms. Althea
Ms. Althea reaped 180 tomatoes from her field. She gave 1/5 of them to a friend, sold 0.75 of the remainder, and kept the rest for herself. What percentage of the total did Ms. Does Althea keep it for herself? - Probability 86
At a business conference, there were ten social workers, 16 doctors, five lawyers, and two journalists. If a person is picked at random from the entire group, what is the probability: a) to be a lawyer b) to be a doctor. - Four digit codes
Given the digits 0-7. If repetition is not allowed, how many four-digit codes that are greater than 2000 and divisible by 4 are possible? - Commission rate 2
Peterson sold a house and lot worth Php 2,000,000.00. If the owner gave him Php 110,000.00 as a commission, what would be the commission rate? - Percentage 74844
The bar contains 12 grams of sugar per 50 grams. What percentage of sugar does the bar have? - A book 2
A book priced at USD25 is sold at a 30% discount at a bookstore. If the same book is sold online for USD20, buyers are given a 15% discount. Applying the concept of proportion, determine the better option for purchasing the book. Justify your choice. Writ - Play the flute
There are 100 members 12 play the flute. What % that plays the flute? - Perpendicular 73574
The two lines of the triangle are perpendicular to each other and are 27 cm and 36 cm. Calculate the length of the sides of the triangle and the length of the third line.
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