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Combinations

Combinations

Two hockey's of 12 and 15 players shake hands at the end of a match: each player on one team shakes hands with each player on the other team. How many handshakes were exchanged?

 

  handshakes

Combinations

How many 3-digit pin codes can be formed?

 

  combinations

Combinations

In computer science, the binary system is used to encode characters. A bit (binary digit) is an element that takes the value 0 or the value 1.
With 8 binary digits (one byte), how many characters can you encode?

 

 characters

Combinations

How many different menu combinations can you compose if you have the choice between 3 starters, 2 main courses and 4 desserts?

 

  combinations

Combinations

A group of 3 students should be assigned to fetch books from the library. How many different combinations are possible to form this group?
(there are 24 students in the class)

 

  combinations

Combinations

How many 8-digit phone numbers can be formed that do not include the odd numbers?

 

  numbers

Combinations

How many 4-digit pin codes can be formed?

 

  codes

Combinations

A multiple choice questionnaire, allowing only one answer per question, includes 5 questions. For each question, we suggest 2 possible answers. How many different combinations we can  answer this questionnaire?

 

  combinations

Combinations

A writer wrote a work consisting of 5 pages, each containing 6 lines. The reader can compose his own poem of 6 lines by taking the first line from one of the ten pages, then the second line from one of the ten pages, and so on until the fourteenth line.
How many poems can be formed from this work?

  poems

Combinations

A woman has 4 skirts, 5 blouses and 3 jackets in her wardrobe. She randomly chooses a skirt, blouse and jacket. How many different combinations can she dress?

 

  combinations