Basic functions + reason - practice problems - page 3 of 99
Number of problems found: 1980
- Oak forest
It takes 45 years to grow from Little oak Oak. How long will it take for an oak forest to grow out of 286 Little oaks? - Test points
If you earned 80% of the possible 40 points, how many points did you miss to get 100%? - Three elephants
Three elephants eat three piles of hay in 150 minutes. For how long do 96 elephants eat 96 stacks of hay? - Children 5352
father + mom = children How much does the task have to be solved?
- Although 4247
There are two sons and two fathers on the boat. Although they caught three fish, each got one. How is it possible? - Copiers
Three copiers will do the same in an hour, k copies. How many copies would be done in an hour by four such copiers? ... - Painters
Fifteen painters painted the fence for 280 minutes. For how many minutes, paint half of this fence with 12 painters? - Minutes 80992
Three eggs are cooked in 15 minutes; how long will it take to cook 15 eggs at once? - Minutes 67614
If eight eggs are cooked in 10 minutes, how long will it take to cook 28 eggs?
- Percentage 81801
Although the price of a theater ticket rose by 20 percent, sales rose by only 8 percent. By what percentage did the number of viewers have to drop? - Fuel consumption
Mazda car has an average nafty consumption of 4.2 liters per 100 kilometers. What is the car range for a full tank of volume 73 liters? - Extreme temperatures
The USA hit an extreme heat wave. Calculate the percentage of the air temperature change from normal summer temperature $t2 °C to $t1 °C. - Possible 4654
It's 2015, and I'm 35 years old. In 2017, I will be 36 years old. How is it possible? - Organizers 45351
The ski organizers have to print the start numbers from 1 to 45. How many times do they use the number 3 when printing?
- Shelter 5316
The sun rises east of the shelter and sets in the west. A goat would gather a little shade. Where and what kind of tree should be planted so that it does not bypass it? - White balls
I have three white balls and five red balls in my pocket. How many balls do I have to remove from the bag to ensure the pulled-out ball is red? - On a farm
A farm has 900 rabbits, 700 sheep, 300 cattle, and 500 pigs. What percentage of the total number of animals are rabbits? - Twenty-five 81187
Twenty-five prizes are drawn in a raffle with 500 tickets. How many tickets do we need to buy to ensure I win at least 3 prizes? - New computer
The new computer process a certain amount of data for 6 hours. How many hours will process the same amount of data older computer with a quarter lower performance?
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