Primary Divisonal 2012/7

Problem for Primary Group from Divisional Mathematical Olympiad will be solved here.
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Phlembac Adib Hasan
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Primary Divisonal 2012/7

Unread post by Phlembac Adib Hasan » Thu Dec 11, 2014 1:29 pm

Batul said his marks in math to Nonte. Nonte said four times of that number to Fonte. Fonte replaced the digit $6$ with $5$ and told the number to their parents. If it was $58$ for their parents, what was Batul's mark in math?
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tanmoy
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Re: Primary Divisonal 2012/7

Unread post by tanmoy » Thu Dec 11, 2014 2:15 pm

Batul's mark in math is $17$.
"Questions we can't answer are far better than answers we can't question"

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