 
 <prompt> ```Jar A enweghị 28 marbul. Jar B enweghị 12 marbul nweta marbul nke Jar A. Jar C enweghị marbul abụọ nke Jar B. Kedu marbul dị ka ha nwere gara aga?``` <response>: ```Jar B gụnyere 28 + 12 = 40 marbles.
Jar C gụnyere 2 x 40 = 80 marbles.
N'ihu, enweghị 28 + 40 + 80 = 148 marbles n'ọnụ.

Ntụgharị a: 148.``` 