For every 3 mini cupcakes that Sabrina has, Mary has 9 more mini cupcakes than her. They have 60 mini cupcakes altogether. How many mini cupcakes does Mary have?
Number of mini cupcakes that Mary has in 1 set
= 3 + 9
= 12
Total number of mini cupcakes in 1 set
= 12 + 3
= 15
Number of sets
= 60 ÷ 15
= 4
Number of mini cupcakes that Mary has
= 4 x 12
= 48
Answer(s): 48