Question
Oliver had 7 more black coins than gold coins at first. His father then gave him 15 black coins and his brothers gave him 92 gold coins for Christmas. Oliver realised that he now had thrice as many gold coins as black coins. How many coins did Oliver have in the end?
4 m

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Oliver had 7 more black coins than gold coins at first. His father then gave him 15 black coins and his brothers gave him 92 gold coins for Christmas. Oliver realised that he now had thrice as many gold coins as black coins. How many coins did Oliver have in the end?