Equation + reason - practice problems - last page
Number of problems found: 710
- Compound interest
Calculate the time when the deposit in the bank with interest 2.6% p.a. doubles. - Father and son
Father and son are 74 years old together. Son is 30 years younger than father. How old is the son? - Sumo competition
In the competition for the heaviest man was 5 competitors. The first three together weighed 369 kg. What is the minimal weight of the winner if a contestant weighed with an accuracy of one kilogram? - Ladislav in Amsterdam
Laco went (was sent) to a conference in Amsterdam for a reward. The conference fee was € 1304. Calculate how many books Ladislav could buy at the price of 32 and 22 euros if he doesn't want to fill the whole home library, and he can buy only 52 books
- Chickens and rabbits
In the yard were chickens and rabbits. Together they had 23 heads and 76 legs. How many chickens and how many rabbits were in the yard? - Salary raise
The monthly salary was 620 Eur. During the year, it was raised to 727 Eur. Calculate the month from salary was increased that employee earned 7547 Eur during the whole year. - Reconstruction of the corridor
Calculate how many minutes will be reduced to travel a 167 km long railway corridor, where the maximum speed increases from 120 km/h to 160 km/h. Calculate how many minutes will shorten travel time if we consider that the train must stop at 6 stations. Ea - Party
At the party, everyone clinked with everyone. Together, they clink $strng times. How many people were at the party? - Trolleybus
Trolleybus line No. 206 measured 24 km. If the trolley bus goes faster by 5 km/h, the way there and back would be shorter by 33 minutes. Calculate the trolley bus speed and the time it takes for a return trip.
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