There were 100 coins in a box.
The ratio of coins to notes was 4 : 7.
After 25 coins were re...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 23.11.2021 15:30, imamnaab5710
There were 100 coins in a box.
The ratio of coins to notes was 4 : 7.
After 25 coins were removed and some notes were added to the box,
the ratio of coins to notes became 1 : 3.
How many notes were added to the box?
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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