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A comment on Math Problems for children from 5 to 15 (2004) [pdf]. Parent comment

Re:Math Problems for children from 5 to 15 (2004) [pdf] by bentcorner on Monday July 19, 2021 @03:37PM (#27886488)
I was wondering the same thing but Kopecks are not currently subdivided.

https://en.wikipedia.org/wiki/Kopek

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Re:Math Problems for children from 5 to 15 (2004) [pdf] by Arnavion on Monday July 19, 2021 @04:43PM (#27887055)
The second question's solution requires half-kopeks.
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Re:Math Problems for children from 5 to 15 (2004) [pdf] by scotty79 on Monday July 19, 2021 @05:25PM (#27887430)
These problems aren't current or modernized. There's no way a bottle with a cork in problem #2 costs 10 kopek.

current 10 kopek is worth 0.0013$

They probably come from time when 0.5 kopek was the smallest coin.

#1 problem doesn't have single non-zero solution if the smallest coin has larger or smaller.

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