Question
Gabby, Riordan and Ben have a total of 158 coins. Gabby and Ben have a total of 87 coins while Riordan and Ben have a total of 117 coins. How many more coins does Ben have than Gabby?
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Gabby, Riordan and Ben have a total of 158 coins. Gabby and Ben have a total of 87 coins while Riordan and Ben have a total of 117 coins. How many more coins does Ben have than Gabby?