Multiplication principle - math word problems
Number of problems found: 214
How many ways are there to arrange 6 books on a shelf?
How many 3 letter "words" are possible using 14 letters of the alphabet? a) n - without repetition b) m - with repetition
- Area codes
How many 6 digit area codes are possible if the first number can't be zero?
How many different ways can sit 8 boys and 3 girls in line if girls want to sit on the edge?
In how many ways can 9 shuttle vans line up at the airport?
How many ways can divide 10 identical candies to 5 children?
- Count of triangles
Given a square ABCD and on each side 10 internal points. Determine the number of triangles with vertices at these points.
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?
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?
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
How many different divisors have number 13 4 * 2 4?
3 children pulled 12 different toys from a box. Many ways can be divided toys so that each child had at least one toy?
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?
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?
Event P has probability of 0.84. What is the probability that the event P occurs in 3, 5, 7 try.
- 7 heroes
9 heroes galloping on 9 horses behind. How many ways can sort them behind?
The hockey match ended 8:2. How many different matches could be?
How many are all subsets of set C = (97, 67, 66, 18, 59, 64)?
What is the probability that a random word composed of chars E, Y, G, E, R, O, M, T will be the GEOMETRY?
How many rectangles with area 8713 cm2 whose sides are natural numbers are?