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27-10-2022
Mathematics

Answered

a. Sasha's father hosts a dinner party. He proposes a toast, and everyone clinks glasses with everyone else, exactly once. There are four couples in all at the dinner party. How many clinks are there?

b. Derman's mother hosts a dinner party. Derman has no idea how many people are there. He hears
66
66 clinks for one toast. How many people are at the party?

Answer :

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