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2 years ago

13

There are nine kids in a class. When any two meet, each says "hi" to the other and the answer "hi" follows. Before the class sta

rts, how many times would one hear the word "hi"?

1 answer:

Xelga [282]2 years ago

6 0

72 times, I believe. Hope I helped.

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Step-by-step explanation:

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