Popular math problems

Three cats
If three cats eat three mice in three minutes, after which time 90 cats eat 90 mice?
Brick weight
The brick weighs 4 kg and a half-brick. How much does one brick weigh?
Chocolate
Anthony bought 9 same chocolates for 18 Eur. How many euros will he pay for 19 chocolates?
Divisibility
Is the number 539439 exactly divisible by 9? (the result is the integer, and/or remainder is zero)
Family
A man and a woman have 7 daughters together (or - "with each other" so that step-children are excluded). Each daughter has one brother. How many members are in the immediate family?
Chickens
4 chickens give 4 eggs in 4 days. How many eggs can give 8 chickens for 8 days?
Subtraction
How many times can you subtract the number 4 from the number 64?
Cyclist
A cyclist passes 64 km in 4 hours. How many kilometers did he pass in 7 hours?
7 heroes
6 heroes galloping on 6 horses behind. How many ways can we sort them behind?
Right Δ
A right triangle has the length of one leg 72 cm and the hypotenuse 90 cm size. Calculate the height of the triangle.
Inflation
What is better for people (employees)? ...
Drinking water
A man drinks a keg of water in $m days, and a woman drinks in $z days. How many days do they consume a keg together?
Flags
How many different flags can be made from green, white, blue, red, orange, yellow, and purple materials, so each flag consists of three different colors?
Vans
In how many ways can 5 shuttle vans line up at the airport?
One half
One half of 2⁷⁵ is: ...
Holidays
Calculate how many hours take holidays, if it takes 5 weeks.
Ace
We pulled out one card from complete sets of playing cards (32 cards). What is the probability of pulling the ace?
Textbooks
After the check of textbooks found that teachers should withdraw every 9-th textbook. Together 176 textbooks were withdrawn. How many textbooks were in stock before being withdrawn, and how many after withdrawal?
Orchard
10 trees in 5 lines grow in the orchard. How many trees are in the orchard?
Homeless Dezider
Homeless Dežko has 8 coins in his jacket: . Calculate the value of its assets and calculate how many bottles of wine for 0.55 EUR it can buy.

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