Basic operations and concepts - math word problems - page 256 of 332
Number of problems found: 6633
- Millionaire
Mr. Smith has withdrawn from the bank, saving interest € 1,500. How big was his initial deposit if the annual interest rate was 1.5%? - Bread apple carbohydrate
Bread contains an average of 52% carbohydrates, and apples have 12% carbohydrates. How many apples weighing 220 g would you have to eat to get as much carbohydrate as 150 g of bread? - Three groups
The company's employees are divided into three groups. The average salary of the first group, which includes 12% of the company's total number of employees, is CZK 40,000; in the second group, CZK 35,000; and in the third group, CZK 25,000. The average sa - Book distribution possibilities
There are 11 pupils in the group, among them just one Martin. How many possibilities are there for distributing 4 different books to these pupils if each is to receive at most one and Martin just one of these books". - Velocity calculation
Calculate the unknown velocity x if: 24 km/h. ... . .. .20 min x km/h. ... . .. .12 min - Beer tapping
When checking compliance with the beer tapping, it was found that 60% of the offered beers were underfilled. The others were fine. Thus, instead of 0.5 l, the volume was 4.4 deciliters on average. What was the volume of one average underfilled beer? - Average mark
In the 6th class, the average half-year mark in physics was 1.7. At the end of the year, Matthew improved his grade from 2 to 1, Ivana from 3 to 2, and Elena from 4 to 2. Paul's grade worsened from 3 to 4. The average mark of the whole class thus improved - Team
The football team has 11 players. Their average age is 19 years. During the match, one player withdraws due to injury, and the team's average age is 16. How old was the injured player? - Energy saving
Three independent inventions were released, each saving 15%, 17%, and 16% of energy respectively. Some people assumed that using all three would save 15% + 17% + 16% = 48% of energy. Is this correct? What is the actual total percentage of energy saved by - Two-Digit Numbers Multiply Four
Write how many double-digit numbers there are, which, if we multiply by four, we get the result ending in two zeros. - Z9-I-4
Kate thought of a five-digit integer. She wrote the sum of this number and its half in the first line of the workbook. Write a total of this number and its fifth on the second line. She wrote a sum of this number and its one ninth on the third row. Finall - Forestry workers
84 laborers have been employed to plant trees in the forest. For 9 hour work a day, they would end job in 38 days. After 18 days, 6 laborers leave. How many days are needed to complete planting trees in nurseries by others if they work 12 hours a day? - Afforestation workers
During afforestation, two workers planted 80 seedlings in 2 hours. At the same output, how many seedlings did 6 workers plant in 5 hours? - Deposit interest growth
How much will the deposit grow at an interest rate of 10% p.d. a. for 72 days by €6? - Iron electrical resistance
The iron is connected to a 230 V power supply with a current of 5000 mA. Calculate the electrical resistance of the iron. - Map scale distance
The map has a scale of 1:2500000, and we measured a distance of 4 cm on the map. What is the distance in km? - Six identical
Six identical compressors inflate 180 balloons in one hour. How many balloons inflate one compressor in 10 minutes? - Iodine solution preparation
Calculate how many grams of iodine and ethanol are needed to prepare 200 grams of 6% iodine in ethanol solution. - Plate dimension
The dimensions of the rectangular plate on the plan were 8 and 6 cm. The actual plexiglass plate was 7:2 to the plan. What were the exact dimensions of the plate? - Painters
Ten painters will paint the school in 20 days. How many days do four painters paint the school at the same pace of work?
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