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Mathematics, 27.10.2021 21:10 vtrvfrfvrvfvnkjrf
Ten memebers ok f the cabinet are attending at Kindervillage public school with the president. They all shook hands with each other both before and after the meeting. How many handshakes were there?
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Ten memebers ok f the cabinet are attending at Kindervillage public school with the president. They...
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