Percentages practice problems - page 94 of 110
Number of problems found: 2197
- Savings and retirement
The older sibling has saved 44% more euros than the youngest, which represents 22 euros. How many euros older brother has saved?
- Bronze, tin and copper
Bronze is an alloy of tin and copper. An alloy of 10% tin and 90% copper is Gunmetal. It is bell metal if it contains 20% tin and 80% copper. How many tons of molten bell metal and copper are needed to make 100 tons of Gunmetal?
- Medians of isosceles triangle
The isosceles triangle has a base ABC |AB| = 16 cm and a 10 cm long arm. What is the length of the medians?
- Increased 2472
The price of skis increased twice from May to December, always by 20%. In December, the skis cost 1440 SKK. What was the original price in May?
- Water in body
Water in the human organism of all the compounds represented constitutes about 3/5 of the total weight. How many kilograms of water is in your body when you weigh 51 kg?
- Determine 2450
Peter and George received a total of 200 euros. George received 75% of the amount. Determine how much each of them received.
- Construction 2449
The construction material was taken away by three different large cars. The weight of the load on the second was 20% more than on the first. The weight on the third was 20% more than on the second. They loaded a total of 18.2 tons. How many tons were on e
- Surface area 2
Calculate how many % reduce the surface area of the cube is reduced the length of each edge by 10%.
- Determine 2429
Determine the length of the cube's edge, the volume of which is equal to 60% of the volume of a block measuring 7cm, 8cm, and 6cm.
- Commuters 2428
A total of 750 pupils attend the school. 20% of students are commuters. 18% of pupils commute in the first grade and 23% in the second grade. How many first graders does the school have?
- Increase 2425
What was the price of the washing machine if, after an increase of 35%, it cost 12690 €?
- Dragon altitude
The kite is tied to a string 85 meters long and hovers over a place 60 meters away from us. Calculate how high the dragon hovers.
- Competitors 2417
20% of the people lost in the races, and the total number was 100 competitors. How many competitors lost?
- Reduce of the volume
Calculate how many % reduce the volume of the cube is reduced the length of each edge by 10%.
- Savings 2411
How many euros does Karol save if 7% of his savings is 70 euros?
- Seeds 2
How many seeds germinated from 1000 pcs when 23% had no emergence?
- Sum 10
What is the probability that two dice thrown twice in a row will result in the sum of 10?
- Throw
We throw two times with two dice. What is the probability that the first roll will fall more than the sum of 9 and the second throw has a sum of 3 or does not have the sum of 4?
- Probability 2386
We throw a die seven times. What is the probability that: a) the first, second, and third times fall six and not in all the others, b) 5 does not fall four times in a row, and yes, in the last 3 hours?
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