SOLUTION: Hi help to solve this Luisa went to shop to buy double scoop of ice cream from 10 different flavours.from how many different combinations could she choose?

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Question 1042708: Hi help to solve this
Luisa went to shop to buy double scoop of ice cream from 10 different flavours.from how many different combinations could she choose?
Answer by ikleyn(53756) About Me  (Show Source):
You can put this solution on YOUR website!
.
C%5B10%5D%5E2 = %2810%2A9%29%2F2 = 45.

On combinations, read the lesson
    - Introduction to Combinations
in this site.