Time + functions - practice problems - page 25 of 56
Number of problems found: 1116
- Double-performance 17931
Excavation work was carried out by nine double-performance machines, which excavated 420 meters of excavation in one day. How many were there if the more powerful machine excavated 420 meters in a week (7 days) and the less powerful engine excavated 280 m - Together 17881
There are six room beds with 200 beds in 2 hours. One room will make 50 beds alone. Then they all continue together. How long will it take to make the rest of the bed together? - Corona virus
Calculate an estimate of the GDP (Gross Domestic Product) percentage that declined due to the quarantine related to the corona COVID-19 virus that lasted for two months. During this time, economic activity is down by 80%. - Flowerbed 17183
Six pupils will adjust the flower beds on the school grounds in 2 hours. In how many hours will four pupils change the same flowerbed?
- According 17163
According to the standard, seven tiles can pave the sidewalk in 12 shifts. After three shifts, one worker went on holiday. In how many shifts were the sidewalk paved? - Coronavirus 17083
The railway company planned the repair of the railway tracks for 15 days. Only some employees showed up for work due to the coronavirus, and they extended the repair to 24 days. By what percentage did the repair time increase? - Highway calculation
How many meters a car travels on the highway at a speed of 130 km/h per second (use a simple proportion). - Strawberries 16473
On the farm, twelve part-timers planned to harvest a crop of strawberries in 5 days. On the fifth day in the weather forecast, they reported rain. How many part-timers will they need to harvest the strawberries in four days? - Volume of wood
Every year, at the same time, an increase in the volume of wood in the forest is measured. The increase is regularly p% compared to the previous year. If in 10 years the volume of wood has increased by 10%, what is the number p?
- Growth of wood
The annual growth of wood in the forest is estimated at 2%. In how many years will make the forest volume double? - Aircraft angines
The aircraft's two engines are enough to supply the fuel for five hours of operation. However, one of the engines has malfunctioned and thus consumes one-third more fuel. How long can the plane be in the air before it runs out of fuel? After an hour of ma - Mortage hypo loan
The Jonáš family decided to buy an older apartment, which cost EUR 30,000. They found EUR 17,000 and took the loan with the bank for the remaining amount. What interest did they receive if they repaid this amount for 15 years at EUR 120 per month? - Worker's performance
Fifteen workers paint 180 m fence in 3 days. In how many days will nine workers paint a 360 m fence? We assume that each worker has the same, constant and unchangeable performance. - Fast tourists
If three tourists pass the route in 5 hours, how long will the same route take six equally fast tourists?
- Filling 15983
Five 1800hl filling pumps in 3 hours for how long does a 4hl filling 1800hl tank? - Magnitude of angle
What magnitude has an obtuse angle enclosed by the hands of clocks at 12:20 hours? - Components 15751
Two workers produce 138 parts in one shift. At the same time, the first of them produces 30% more than the second. How many components will each have? I need a notation and an equation. Thank you. - Father and daughter
The father is 36 years old; the daughter is 20 years younger. What will be the ratio between them if they are ten years older? - Ages
Father is 36 years old, and his daughter is four years old. Write down the ratio of the age of the father and daughter. In what ratio will the ages of father and daughter be after four years?
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