Question
A group of pupils took part in two table tennis games. For the first game, there were 10 teams with 9 pupils each. 3 more pupils joined in after the first game. The pupils were then rearranged to form 3 teams for the second game. How many more pupils were there in each team in the second game than the first game?
4 m

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A group of pupils took part in two table tennis games. For the first game, there were 10 teams with 9 pupils each. 3 more pupils joined in after the first game. The pupils were then rearranged to form 3 teams for the second game. How many more pupils were there in each team in the second game than the first game?