Combinatorics - practice for 8 year olds
Number of problems found: 7
- A single
A single, standard number cube is tossed. What is the probability of getting a number greater than 3? - Orchard
10 trees in 5 lines grow in the orchard. How many trees are in the orchard? - Green and red cubes
There are five green cubes (numbered 1 - 5) and four red cubes (numbered 1 - 4). How many ways can the cubes fit in a box that only needs two green and three red cubes? - Page numbering
The book has 88 pages. How many times is the number 4 used for the book numbering?
- Triangle from sticks
Bob the boulder has many sticks of lengths 3.5 and 7. He wants to form triangles, each of whose edges consists of exactly one stick. How many non-congruent triangles can be formed with the sticks? - Find two digits
Find the possible values of A and B if the six-digit number 2A16B6 is divisible by 4 and 9. Please write the result as a composed number. - Positive integer integral
How many different sets of a positive integer in the form (x, y, z) satisfy the equation xyz=1400?
We apologize, but in this category are not a lot of examples.
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