Percentages - practice for 13 year olds - page 13 of 54
Number of problems found: 1080
- Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number. - Washing mashine
The family buys a washing machine for 350e. Cash paid 280e. What percentage of the total price must still pay the washer? - Percentage of waste
In a square plate with a side 75 cm, we cut four same circles. Calculate the percentage of waste. - Ace
We pulled out one card from complete sets of playing cards (32 cards). What is the probability of pulling the ace? - Typing course
Before taking a typing course, Terrence could type 39 words per minute. By the course's end, he could type 68 words per minute. Find the percent increase. - Percentages above 100%
What is 144% of 65? What is the meaning of percentages above 100%? - Extreme temperatures
The USA hit an extreme heat wave. Calculate the percentage of the air temperature change from normal summer temperature $t2 °C to $t1 °C. - Percentage 83199
The selling price is 5.75 EUR, and the buying price is 4 EUR. By what percentage was the price increased? - Percentage 81296
Milan saved 120 euros per year, and Eduard saved 150 euros. By what percentage did Eduard save more? - Reduced 81099
A square has a side length of 25 cm. How big is its area if the side is reduced by 25%? - Employees 64184
The company employs 20% more women than men and 240 women. How many employees are there? - Cheaper 63574
The book was twice as 10% cheaper as € 5.60. How much does it cost now - Weighs 63254
The water court weighs 520 kg. The weight of the barrel is 60% of the total weight. What is the mass of water? - Original 57121
They reduced the goods by 15% from the original price of CZK 3,400. What is the new price? - Penalties 26341
Martin, captain of the football team Lysice, converted 19 penalties, which means a success rate of 76%. How many penalties did Martin not convert? - Percentage 16423
The pizza has the shape of a circle and is divided into eight equal parts. My mother ate three parts. What percentage of pizza is left? - Products 6231
The original price of the products was 6,300. We reduced the product by 10 percent twice. What is its final price? - Increased 6053
Three new members have been added to the section. The number of members increased by 2%. How many members does the section now have? - Multiplied 5860
Which number, in the form of a fraction, needs to be multiplied by 40 to get a 6% smaller number? - Percentage 5635
The dress was reduced from CZK 840 to CZK 651. Calculate what percentage they have been discounted.
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