Answer :
Well Tyler ate 20, and Jack ate 15. I say this because I just subtracted the 5 cupcakes from the complete amount and got 30. Then I divided that by the two boys, and that gave them 15 each, but then I added back the 5 to one of the boy's totals (being Tyler's since he ate five more) And Tyler was left eating 20 while jack still ate 15.