 
 <prompt> Vinny kwesiri iji 300 pounds mgbe o hụrụ 20 pounds n'ime nchịkwa mbụ nke ya. O gara agba ọsọ, ma ọnọdụ nke ọ bụla a hụrụ n'ime nchịkwa gara agba ọsọ. Na ọdịnke ise nke nchịkwa nke ya, o gara ike iji ọrụ nke ọma maka ike iji ọrụ nke ọma, ma ọ bụrụ na ọ dịghị ike iji ọrụ nke ọma. Ọ bụghị ihe ọ bụla nke Vinny kwesiri iji 250.5 pounds n'ime nchịkwa ya, onweghị ihe ọ bụla ọdịkarị n'ime nchịkwa ise nke ya? <response>: N'ime ncha abuo, Vinny jiri ihe ọ bụla ọzọ n'ime ncha mbu, n'ile ọzọ ya, ya jụrụ 20 pounds / 2 = 10 pounds.
N'ime ncha atọ, ya jụrụ iche iche n'ime ncha, nke bụ 10 pounds / 2 = 5 pounds.
Na n'ime ncha ise, ya jụrụ 5 pounds / 2 = 2.5 pounds.
N'ihi na ihe ọ bụla, Vinny jiri 20 + 10 + 5 + 2.5 = 37.5 pounds n'ime ncha abuo.
N'ime n'ime n'ime ya, ya jiri 300 - 250.5 = 49.5 pounds.
N'ihi na ncha ise, Vinny ga-eme 49.5 pounds n'ime ncha ọzọ - 37.5 pounds n'ime ncha abuo = 12 pounds.

Answer is 12. 