Percentages + expression of a variable from the formula - practice problems
Number of problems found: 214
- 150 percent
One hundred fifty percent of what number is 15? 150% of x is 15. - Specify 3808
Specify a number that is 61% less than 10². - Finding the base
Find the unknown base of percent: 12.5 percent of what = 16? - Determine 37931
40% of the base is 1200. Determine what the base is. - Determine 7468
Determine the base if 2.8 per mille is 50. - Lions
If eight lions are 40%, how many would 75% be? - Determine 3789
Determine x if 52% of x equals 9.1 * 6. - Full value
If 7 %=16000000, what will be 100%? - Webshop 3027
Webshop reduced the price of the suit by p percent. What was the new cost of the suit? - Unknown 4281
19% of the unknown number is 12, less than 23% of the same number. Specify an unknown number. - Price increase
A 20 percent price increase meant a 90-crown raise. How much cost a product after? - Petra 6
Petra sold an item for 4000 and made a 40% profit. What was the cost price of the product? - Percentage increase
What is the annual percentage increase in the city when the population has tripled in 20 years? - Cube edges
If the edge length of the cube increases by 50%, how does the volume of this cube increase? - The price
The price of the land increased by 17%. What was the original price of the land if it now costs 46800 €? - Cuboid enlargement
By how many percent increases the volume of the cuboid if every dimension increases by 30%? - Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number. - Cows
The agricultural cooperative has increased the number of housed cows by 14% to 285 units. How many cows increased the agricultural cooperative number of cows? - Sale off
The product cost 95 euros before the sale. After-sale off cost 74 euros and 10 cents. About what percentage of products became cheaper? - Demographics
The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase in population?
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