Question
The average weight of 7 pupils is 35 kg. When the weights of Oscar and Seth are included, the average weight becomes 46 kg. Seth is 10 kg lighter than Oscar. What is Oscar's weight?
3 m

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The average weight of 7 pupils is 35 kg. When the weights of Oscar and Seth are included, the average weight becomes 46 kg. Seth is 10 kg lighter than Oscar. What is Oscar's weight?