Percentages - practice for 14 year olds - page 22 of 61
Number of problems found: 1206
- Discount 40531
The shop with fur coats has a fur coat, red costs 150eur old, a discount of 85 percent. How much does it cost after the discount? If there was an 85% discount, how much would it cost? - Metal washers
Metal washers with a diameter of 80 mm are cut from a strip of steel sheet with a width of 10 cm and a length of 2 m. When two adjacent circles meet, calculate the material waste percentage if no material is lost. - Percentage 40141
Of the 99 children who attended the ski course, 23 were excellent skiers, 13 were good, 20 were average, and the rest were beginners. Calculate this data as a percentage. - The encore
The rock band had a 15-minute encore at their concert, which accounted for 12% of the total length of the concert. What was the total length of the concert?
- The price
The price of the calculator gradually decreased. From 65 euros to 30 euros, then to 10 euros and finally to 4 euros. What percentage were the individual reductions? What percentage of the original price was reduced? - Pharmacist
The pharmacist had a 12 liters vessel herbal lotion, which contained a 30% active ingredient. Her assistant poured 18 liters of herbal lotion containing 45% of the active ingredient into a container. What percentage of herbal lotion was produced? - Percentage 39403
Romeo is 20% taller than Juliet. What percentage is Julie lower than Romeo, who measures 180 cm? - Percentage 39373
Inside the 10 cm cube, a sphere is placed to touch all the cube's walls. What percentage of the volume of a cube makes up the volume of a sphere? - Year-on-year 39353
The company's turnover for the period 2011-2013 increased by 3.7%. From 2013 to 2019, an average year-on-year decrease in turnover of 5% was recorded. What is the total relative change in turnover from 2013 to 2019?
- Alcohol solutions
We have to produce 2 liters of 60% alcohol from 55% and 80%. How many of which ones will we use in the solution? - Earning 2
Rahul earns 5000 Rs, and he saves 500 Rs. What percentage of his earnings does he save? - How many 9
How much percent volume remains of a sphere if the diameter decrease 3×? - Solution 38451
Prepare 2 liters (kg) of a 3% salt solution in water. - Participants
Of the 48 participants, six women are fewer than men and 24 children less than all adults. Calculate what percentage of all participants on tour are children.
- Solution 38411
Prepare 250g of a 30% solution of hydrogen peroxide in water. - Salicylic 38401
Prepare 600 g of an 8% solution of salicylic acid. - Difference 38253
The blue coat, which costs CZK 1,200, has a price 40% lower than the red coat. What is the price difference between the two coats? - Lions
If eight lions are 40%, how many would 75% be? - Percentage 37941
What percentage is 119 t of 85 t?
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