Question
The average weight of 7 students is 34 kg. When the weights of Michael and Japheth are included, the average weight becomes 46 kg. Japheth is 10 kg lighter than Michael. What is Michael's weight?
3 m

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The average weight of 7 students is 34 kg. When the weights of Michael and Japheth are included, the average weight becomes 46 kg. Japheth is 10 kg lighter than Michael. What is Michael's weight?