# Percentages Problems

#### Number of problems found: 785

• Surface of wall Find by what percentage the surface of the cube will decrease if we reduce the surface of each of its walls by 12%.
• Efficiency What is the power output of a kettle 2 kW with an efficiency of 90%?
• Percents How many percents is 900 greater than the number 750?
• Above 100% Find 340 percent of the numbers 45 and 55.
• Content area and percents Determine what percentage is smaller cube surface, when the surface area of the wall decreases by 25%.
• Cuboid enlargement By how many percent increases the volume of cuboid if every dimension increases by 30%?
• Cacao Cacao contains 34% filling. How many grams of filling are in 130 g cacao.
• Unknown number 7 16% of the unknown number is by 21 less than unknown number itself. Determine the natural unknown number.
• Raspberries Dano had 20 raspberries. John had 90% more raspberries than Dano. Determine how many raspberries have Dano and Juraj together.
• Cancer Of the 80 people 50 people ill cancer. What percentage of people isn't ill?
• Kerosine and petrol If 4 liters of petrol containing 15% kerosine are added to another 7 liters of petrol containing 10% kerosine, what percentage of the petrol is kerosine?
• Price saleoff Shoes standing y euros. At first, they were discounted by 12% and then 50% of the new amount. After this double cheapening the cost was exactly 22 euros. Determine the original price of the shoes.
• Sales off shoes cost x euros. First they are discounted by 50%, and then 25% of the new amount. Determine what percentage of the total cost is cheaper.
• Cargo Car with cargo weight 7610 kg. Weight of car is 23% of the total weight of car and cargo. How heavy is cargo?
• Unknown number x 5% from an unknown number equals the number 26. What is the unknown number?
• Weightlifter Weightlifter lifted 75% of its weight. Determine how much weight lifted when he weighs 132 kg.
• Shots Determine the percentage rate of keeper interventions if from 32 shots doesn't caught four shots.
• Sale off Product cost 95 euros before sale off. After sale off cost 74 euros and 10 cents. About what percentage of produt became cheaper?
• Percents - easy How many percent is 432 out of 434?
• Bookshelve Bookshelve with an original price of € 200 twice become cheaper. After the second discounted by 15% the price was € 149.60. Determine how much % become cheaper for the first time.

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