Question
Min, Usha, Riordan and Tammy shared some stamps. Min and Usha took 15 of the total number of stamps while Riordan and Tammy took the rest. Usha had thrice as many stamps as Min and Tammy had 54 stamps. Given that Tammy had thrice as many stamps as Usha, how many stamps were there altogether?
4 m

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Min, Usha, Riordan and Tammy shared some stamps. Min and Usha took 15 of the total number of stamps while Riordan and Tammy took the rest. Usha had thrice as many stamps as Min and Tammy had 54 stamps. Given that Tammy had thrice as many stamps as Usha, how many stamps were there altogether?