 
 <prompt> Joan gara aga na 2 ụbọchị iji mee ihe ndị ọzọ na-eme. O nwere 30 njede na piano, 25 njede ịkọrọ akụkọ na computer ya, na 38 njede ịbụla nke ịkọrọ na ịkpọtara nke piano. N'ihu ya nke ọzọ bụ iji nwee aha nke aha n'ime. Kedu ihe ọ bụla n'ọkụ? <response>: ```O nwere 120 na-enye aka iji iji n'ihu gara aga 2 x 60 = 120
O nwere 93 na-enye aka na ike iji iji n'ihu gara aga 30 + 25 + 38 = 93
O nwere 27 na-enye aka iji iji n'ihu nwere ike iji iji n'ihu gara aga 120-93 = 27

Nkwupụta a: 27.``` 