Multiplication principle - math word problems

Number of problems found: 214

  • Shelf
    bookshelf How many ways are there to arrange 6 books on a shelf?
  • Words
    words How many 3 letter "words" are possible using 14 letters of the alphabet? a) n - without repetition b) m - with repetition
  • Area codes
    us_codes How many 6 digit area codes are possible if the first number can't be zero?
  • Kids
    kids How many different ways can sit 8 boys and 3 girls in line if girls want to sit on the edge?
  • Vans
    shuttlevan In how many ways can 9 shuttle vans line up at the airport?
  • Candy
    bulls How many ways can divide 10 identical candies to 5 children?
  • Count of triangles
    SquareTriangle Given a square ABCD and on each side 10 internal points. Determine the number of triangles with vertices at these points.
  • Balls
    spheres From the urn in which are 7 white balls and 17 red, gradually drag 3-times without replacement. What is the probability that pulls balls are in order: red red red?
  • Pairs
    pair At the table sit 10 people, 5 on one side and 5 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit?
  • Components
    components In the box are 8 white, 4 blue and 2 red components. What is the probability that we pull one white, one blue and one red component without returning?
  • No. of divisors
    triangle_div How many different divisors have number 13 4 * 2 4?
  • Toys
    toys 3 children pulled 12 different toys from a box. Many ways can be divided toys so that each child had at least one toy?
  • Hearts
    hearts_cards 5 cards are chosen from a standard deck of 52 playing cards (13 hearts) with replacement. What is the probability of choosing 5 hearts in a row?
  • Pizza
    pizza A school survey found that 12 out of 15 students like pizza. If 6 students are chosen at random, what is the probability that all 6 students like pizza?
  • Events
    items Event P has probability of 0.84. What is the probability that the event P occurs in 3, 5, 7 try.
  • 7 heroes
    7statocnych 9 heroes galloping on 9 horses behind. How many ways can sort them behind?
  • Hockey
    hokej The hockey match ended 8:2. How many different matches could be?
  • Subsets
    1venna_sets How many are all subsets of set C = (97, 67, 66, 18, 59, 64)?
  • Word
    words What is the probability that a random word composed of chars E, Y, G, E, R, O, M, T will be the GEOMETRY?
  • Rectangles
    rectangles How many rectangles with area 8713 cm2 whose sides are natural numbers are?

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