The answer to the eighth question on page 24 of the first volume of the sixth grade mathematics junior champion - Training Enrollment Network

The answer to the eighth question on page 24 of the first volume of the sixth grade mathematics junior champion

Solution: Suppose my sister has X yuan and my brother has (260-X) yuan.

According to the equation that the money left by my sister is equal to the money left by my brother.

2/3X=(260-X)- 10

X= 150

A: My elder sister used to 150 yuan, and my elder brother used to 1 10 yuan.

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