Multiplication principle - practice for 14 year olds - last page
Number of problems found: 280
- Vans
In how many ways can 5 shuttle vans line up at the airport? - Count of triangles
On each side of an ABCD square is 10 internal points. Determine the number of triangles with vertices at these points. - Pairs
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
The 8 white, 4 blue, and 2 red components are in the box. What is the probability that we pull one white, one blue, and one red component without returning it?
- Scrap
From 19 products are 4 scraps. What is the probability that the random pick of 2 products has no defective product? - Toys
3 children pulled 9 different toys from a box. How many ways can toys be divided, so each child has at least one toy? - Pizza
A school survey found that 10 out of 15 students like pizza. If 5 students are chosen randomly, what is the probability that all 5 students like pizza? - 7 heroes
6 heroes galloping on 6 horses behind. How many ways can we sort them behind? - Subsets
How many are all subsets of set C = (97, 67, 66, 18, 59, 64)?
- Rectangles
How many rectangles with area 3152 cm² whose sides are natural numbers? - Flags
How many different flags can be made from green, white, blue, red, orange, yellow, and purple materials, so each flag consists of three different colors? - Bits, bytes
Calculate how many different numbers can be encoded in a 16-bit binary word. - Examination
The class is 25 students. How many ways can we choose 5 students for examination? - Guests
How many ways can 8 guests sit down on 10 seats standing in a row?
- 2nd class variations
From how many elements can you create 5112 variations of the second class? - Football league
In the 5th football league is 10 teams. How many ways can be filled first, second, and third place? - Chess
How many ways can you select 4 fields on a classic chessboard with 64 fields so that fields don't have the same color? - Playing cards
How many possible ways are there to shuffle 8 playing cards? - Seating
How many ways can 7 people sit on 5 numbered chairs (e. g., seat reservation on the train)?
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