Reason - high school - math problems

Number of problems found: 310

  • Big factorial
    sierpinski How many zeros end number 116! ?
  • Research in school
    numbers_1 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
  • Variable
    eq2_12 Find variable P: PP plus P x P plus P = 160
  • Hockey
    hokej Hockey match ended 8:2. How many different matches could be?
  • Dice
    dices2_4 We throw five times the dice. What is the probability that six fits exactly twice?
  • Competition
    sutaz 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?
  • Tricolors
    Flag_of_the_Netherlands.svg From the colors - red, blue, green, black and white, create all possible tricolors.
  • Lottery
    loteria_1 The lottery is 60000 elk in which 6200 wins. What is the probability that the purchase of 12 elks won nothing?
  • Lunch
    skola_15 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?
    math_1 How many words can be created from the phrase MATEMATIKA by changing the letters' order, regardless of whether the words are meaningful?
  • Fruits
    banan_1 In the shop sell 4 kinds of fruits. How many ways can we buy three pieces of fruit?
  • Bouquets
    flowers In the flower shop they sell roses, tulips and daffodils. How many different bouquets of 5 flowers can we made?
  • Compound interest
    exponential_usd Calculate time when deposit in the bank with interest 2.5% p.a. doubles.
  • Chess
    chess How many different ways can initiate a game of chess (first pass)?
  • Diofant equation
    eq222_19 250x + 120y = 5640
  • Circles
    circles How many different circles is determined by 9 points at the plane, if 6 of them lie in a straight line?
  • One three
    dice We throw two dice. What is the probability that max one three falls?
  • Lines
    lines_1 In how many points will intersect 14 different lines, where no two are parallel?
  • Subsets
    venn5 How many 19 element's subsets can be made from the 26 element set?
  • Consecutive numbers
    progression Sum of ten consecutive numbers is 105. Determine these numbers (write first and last).

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.

We will send a solution to your e-mail address. Solved examples are also published here. Please enter the e-mail correctly and check whether you don't have a full mailbox.

Please do not submit problems from current active competitions such as Mathematical Olympiad, correspondence seminars etc...