Asked by Nadia
On the first day of school everyone wants to shake hands. How many handshakes in all?
Hint: There are 30 kids
Hint: There are 30 kids
Answers
Answered by
drwls
Each of the 30 students has 29 hands to shake.
30 x 29 / 2 = 435
Dividing by 2 avoids double counting.
30 x 29 / 2 = 435
Dividing by 2 avoids double counting.
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