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- Solve a math problem in the third grade of primary school!
Solve a math problem in the third grade of primary school!
Solution: let the egg weigh x g and the goose egg weigh y g.
There are 2x+2y=400 ①.
5x+y=400 ②
From ②×2-①
x=50
∴y= 150
Namely 50g eggs and 150g goose eggs.
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