 
 <prompt> Susan e nwere ego. O gara 1/5 nke ya na September, 1/4 nke ya na October, na $120 na November. Mgbe e gara ha, o nwere $540 n'efu. Kedu ihe ego e nwere na ọzọ? <response>: ```Bido X ka mmadu Susan nwere n'ime. Susan nwepu 1/5*X na September, 1/4*X na October, na $120 na November.
Susan nwere X - 1/5*X - 1/4*X - $120 = $540 nke.
Na-agba ụdị ọzọ, anyị na-eji 11/20*X - $120 = $540
Na-adị $120 na ọzọ, anyị na-eji 11/20*X = $660.
Na-agba ụdị ọzọ na 11/20 anyị na-eji X = $1200.

Nkwupụta a: 1200.``` 