tseries110101919 tseries110101919

01-05-2019
Mathematics

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There are some black and white buttons in a container.
7/10 of the buttons are black.
The difference between the number of black and white buttons is 24.
How many buttons are there in the container?

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hellokxiao hellokxiao

01-05-2019

there are 80 buttons

7/10

3÷24=8 8×7=56 56+24=80

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