Question
Fred had 9 more yellow erasers than blue erasers at first. His father then gave him 12 yellow erasers and his schoolmates gave him 141 blue erasers for Christmas. Fred realised that he now had four times as many blue erasers as yellow erasers. How many erasers did Fred have in the end?
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Fred had 9 more yellow erasers than blue erasers at first. His father then gave him 12 yellow erasers and his schoolmates gave him 141 blue erasers for Christmas. Fred realised that he now had four times as many blue erasers as yellow erasers. How many erasers did Fred have in the end?