Percentages practice problems - page 90 of 110
Number of problems found: 2193
- Solution 3092
How many liters of 80% alcohol need to be mixed with 4 liters of 40% alcohol to get 70% alcohol? How many liters of 70% solution do we get?
- Numbers 3090
The sum of the two numbers is 52.5. The first number makes up 75% of the second number. Specify both numbers.
- Solution
What amount of 80% solution and water is needed to mix to obtain two liters of 60% solution of this mixture?
- Savings 3087
Milan has 84 euros. He gave his brother 20% of his savings and his sister 25%. Find how much money each has.
- Salary in enterprise
The average salary in the company is 27,000 CZK. 30% of workers have the lowest average income of 19,000 CZK. The wages in this group increased by 2%. How much did this increase the average wage across the company?
- Cylinder-shaped 3037
Nine hundred hectoliters of water were filled into the cylinder-shaped pool. The pool is 1.5 m deep, and its diameter is 10 m. What percentage of the pool volume has the water-filled?
- Webshop 3027
The webshop reduced the price of the suit by p percent. What was the new cost of the suit?
- Increased 3018
After an increase of 40%, the notebook cost 10.50 euros. How many euros would this notebook cost if it increased in price by only 30% instead of 40%?
- Determine 3013
An unknown number increased by 300% equals 62. Determine an unknown number.
- Percentage - fractions
About what percentage must we increase the number 1/6 to get the number 1/3?
- Class
In the 7C class, there are ten girls and 20 boys. Yesterday was missing 20% of girls and 50% of boys. What percentage of students are missing?
- Connecting 2990
We use 540 m of mesh, of which 20% are for connecting corners. How much mesh did we use to join the corners?
- Reduced 2989
They reduced the price of the board by 25% after the season. How much does it cost now if they cost 333 euros after the season?
- Salary increase
Ms. Merry's salary increased by 15%, which was 83 euros. What should you pay before the increase?
- Three piles
We divide 100 kg of sugar into three piles. The first pile is small. If we add 2 kg of sugar to the second, it would have 25% more sugar than the first pile. If we add 3 kg of sugar to the third pile, it would have 20% more sugar than the second pile. How
- Drying apples
By drying, apples lose 85% of their weight. How many kgs of dried apples are from 820 kilograms of fresh apples?
- Percentage and rectangle
What percentage increases the perimeter and area of a rectangle if both sides are 12 cm and 10 cm long, and we increase it by 20%?
- Percent
Calculate how much % is the number 26.25 less than the number 105.
- Triangle KLB
It is given an equilateral triangle ABC. From point L, the midpoint of the side BC of the triangle, it is drawn perpendicular to the side AB. The intersection of the perpendicular and the side AB is point K. How many percent of the area of the triangle AB
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