 
 <prompt> ```Ọ bụghị nke a na-akpọ Lucy na-akpọ Linda $5, Lucy ga-ekwupụtara akụ nke Linda. Ọ bụghị nke a na-akpọ Lucy jiri $20, kedụ akụ Linda jiri na nchịkọta?``` <response>: ```Mepụta nke a, Lucy na-akpọ $5, Lucy nwere $20 - $5 = $15 n'ime.
O nwere $15 mgbe Linda na-akpọ $5, nke a e nwere $15 - $5 = $10 n'otu n'ime.

Nke a bụ onye ọzọ: 10.``` 