There are eleven balloons floating in a big box. If one balloon clashes with another only once, how many clashes have there been?
Answers
Answered by
0
Given : eleven balloons floating in a big box.
one balloon clashes with another only once,
To Find : Number of clashes
Solution:
Total Balloons = 11
one balloon clashes with another only once
For a clash 2 balloons are required
Number of ways to select 2 balloons from 11 are given by ¹¹C₂
= 11 * 10 / 2
= 11 * 5
= 55
Hence 55 clashes
Learn More:
The number of ways of selecting 4 cards of an ordinary pack of ...
brainly.in/question/16152567
friends and his uncle How many card paper strips are required if ...
brainly.in/question/15608183
Similar questions