Reason - high school - math problems
Number of problems found: 319
- Big factorial
How many zeros end number 116! ?
- Research in school
For particular research in high school, four pupils are to be selected from a class with 30 pupils. Calculate the number of all possible results of the select and further calculate the number of all possible results, if it depends on the order in which th
Find variable P: PP plus P x P plus P = 160
Hockey match ended 8:2. How many different matches could be?
We throw five times the dice. What is the probability that six fits exactly twice?
15 boys and 10 girls are in the class. On school competition of them is selected 6-member team composed of 4 boys and 2 girls. How many ways can we select students?
From the colors - red, blue, green, black and white, create all possible tricolors.
The lottery is 60000 elk in which 6200 wins. What is the probability that the purchase of 12 elks won nothing?
Seven classmates go every day for lunch. If they always come to the front in a different order, will be enough school year to take of all the possibilities?
- Word MATEMATIKA
How many words can be created from the phrase MATEMATIKA by changing the letters' order, regardless of whether the words are meaningful?
In the shop sell 4 kinds of fruits. How many ways can we buy three pieces of fruit?
In the flower shop they sell roses, tulips and daffodils. How many different bouquets of 5 flowers can we made?
- Compound interest
Calculate time when deposit in the bank with interest 2.5% p.a. doubles.
How many different ways can initiate a game of chess (first pass)?
- Diofant equation
250x + 120y = 5640
How many different circles is determined by 9 points at the plane, if 6 of them lie in a straight line?
- One three
We throw two dice. What is the probability that max one three falls?
In how many points will intersect 14 different lines, where no two are parallel?
How many 19 element's subsets can be made from the 26 element set?
- Consecutive numbers
Sum of ten consecutive numbers is 105. Determine these numbers (write first and last).
Reason - math problems. Examples for secondary school students.