Respuesta :

I believe the patter is going up like 1,2,3,4 so next I would say would be 5

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

The sets are being increased by adding in numerical order

SO now add 5 to the the last set:

10 + 5 = 15

The next set will be 15

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